Date of conception calculator. This calculator lets you customize that duration if .
Date of conception calculator Our pregnancy can be the best choice for giving you exact estimates about pregnancy conception. A pregnancy conception calculator is a specialized tool designed to estimate the date of conception, due date, and important milestones throughout pregnancy. You know your birthday, but when were you conceived? Find out your approximate conception date (or your new baby's) using our free Conception Date Calculator. This calculator helps you understand your fertility window and improve your pregnancy. (If you don't know your due date yet, just head over to our Due Date Calculator. This calculator works for: Pregnancy dating - Determine May 14, 2025 · Estimate your conception date, ovulation, and fertile window using our easy Pregnancy Conception Calculator. The Due Date Calculator at WebCalculators. By using your birthday, we can estimate the approximate date when you were conceived. If your child isn't born yet, simply enter his or her due date into the calculator instead to find the date of conception. Plan your reproductive health with insights on fertile days and pregnancy milestones. Calculating Gestational Age Last Menstrual Period May 14, 2025 · Pregnancy Calculator Overview This Pregnancy Calculator helps you estimate important milestones in your pregnancy journey. The accuracy can vary due to factors like irregular menstrual cycles, delayed implantation, and variations in pregnancy length. Track menstrual cycles and optimize conception timing with our free online pregnancy calculator. What would you like to calculate? My estimated conception and due date First day of my last menstrual cycle Conception date from known birth date or due date Enter the first day of your last menstrual period: Enter your due date: Enter your birth date or due date: When is your baby due? Use this pregnancy calculator from Motherhood Center to find your due date based on the date of your last menstrual period or conception date. It gives a single best estimate plus short windows for intercourse and conception. So if your doctor gave you a due date based on an early ultrasound or other method, this calculator will tell you when you most likely got pregnant. Since exact conception dates are difficult to determine without fertility monitoring, the calculator uses known timelines of ovulation, implantation, and gestation to provide the most accurate possible estimate based on: Our Pregnancy Conception Calculator makes it easy to determine when conception likely occurred based on your last menstrual period (LMP) or estimated due date. Calculate your most likely conception dates based on your menstrual cycle, and estimate your due date with our free online conception calculator. Oct 17, 2025 · How do you calculate due date from conception? If you know when you conceived, our pregnancy calculator calculates your due date by adding 38 weeks to the date of conception. Oct 3, 2024 · The conception date calculator is a valuable tool for expectant parents and healthcare providers to estimate the date of conception and important milestones in the pregnancy journey. Take a look below at how each of Understanding your conception date can help you better estimate your baby’s age, calculate the due date, and monitor milestones during your pregnancy. Org is a Free and reliable tool that helps expecting parents estimate their baby’s due date based on important inputs such as the first day of your last menstrual period (LMP) or the conception date. A Conception Calculator is a free pregnancy tool that estimates when conception occurred based on due date, last menstrual period, or ultrasound dating. Discover your Estimated Date of Conception or Conception Based on Due Date. Your health care provider will confirm the baby's gestational age with a first trimester ultrasound. This calculator presumes the child was born on or around the expected due date. To help women and couples, this calculator was designed to estimate when their baby was conceived. What is a Pregnancy Conception Calculator? A Pregnancy Conception Calculator is a simple and effective tool that helps you estimate the date of conception. It helps in determining the most fertile days and the possible range of days during which conception could have occurred. Calculate your next period date and ovulation day. Some couples are keen to know when they struck gold, and our conception calculator can help pinpoint the moment you got pregnant. When calculating conception based on the due date, we subtract 266 days (38 weeks). It also calculates when your first and second trimesters end and how many days and weeks pregnant you are as of today. This calculator provides an estimated pregnancy schedule based on the due date, last period date, ultrasound date, conception date, or IVF transfer date. But besides having to know about the due date, pregnancy wheel can help you out with a wide range of important happenings during the course of pregnancy. About This Calculator Our calculator estimates your due date based on LMP, your average cycle length and your luteal phase length. Arenas, published on October 11, 2019 Oftentimes, women don’t know exactly when they got pregnant. Find out when to expect important prenatal tests. The Conception Calculator uses clinical algorithms and research to provide accurate conception timing and pregnancy dating predictions. This calculator helps you: Determine approximate conception date for family records Identify the likely ovulation and Calculate the likely date of conception with this Conception Date Calculator. While no tool can guarantee a pregnancy, this pregnancy conception calculator can provide a more precise Find out your ovulation, conception, and due date instantly. Estimate the exact date of conception based on your last period or due date. Accurate & fast results! 6 days ago · Trying to pinpoint your due date from a specific event? Whether you know the date of intercourse or your estimated conception date, our calculator accounts for key biological factors to give you the most accurate possible timeline. Our conception calculator uses your last menstrual Use Pregnancy Conception Calculator to estimate your conception date accurately, helping you track pregnancy milestones and plan ahead with confidence. Sep 24, 2025 · Use our pregnancy conception calculator to find your fertile window & ovulation date. The expected date of delivery (EDD) and estimated conception date computed by this calculator are for informational purposes only and by no means shall be used as the exact dates for these events. About Conception Date Calculator The Conception Date Calculator is used to estimate your conception date, tell you when you were likely to have conceived, and tell you your baby’s possible due date. Estimate your conception date, fertile window, and pregnancy trimesters instantly with our easy-to-use Baby Conception Calculator tool. Enter last period, conception, IVF, or ultrasound date to get personalized results. Produces EDD, Gestational Age today, calculated LMP, and estimated conception date. Sep 26, 2024 · Wondering when your baby was conceived? Use our Conception Date Calculator to find out the most likely date you conceived your little bundle. This method allows you to find out how far along you are, but also when to expect baby to make their grand entrance. Get accurate pregnancy timeline with key milestones and important dates for your pregnancy journey. This calculator helps you: Estimate your baby's due date accurately Track your current week of Oct 10, 2025 · When is your baby due? Use this pregnancy calculator to find your due date based on the date of your last menstrual period, conception date, IVF three-day or five-day transfer date, or date of your last ultrasound. By knowing your estimated due date, you can calculate when your last period started, and from there, you can calculate your conception date. Start now! Apr 19, 2024 · How Is the Date of Conception Calculated? It’s simple math! For a standard 28-day cycle, subtract 266 days from your estimated due date, and voila – you’ve got your estimated date of conception. The accuracy depends on the calculation method used and individual factors. Sep 17, 2025 · A Pregnancy Conception Calculator estimates when conception likely occurred based on either your due date or last menstrual period. state. The resulting date is your estimated day of ovulation. 3 days ago · Find your estimated conception date using your last period, due date, or ultrasound scan. Use our conception calculator to find out your date of conception. You may even be able to use your conception date to see how far along you are and when baby is likely to arrive. Calculate when conception likely occurred based on your due date or last period. (If you don’t know your due date yet, just head over to our Due Date Calculator. Whether you’re in the early stages of pregnancy or planning Calculate your fertility window, ovulation date, and pregnancy due date. Ideal for planning and tracking your pregnancy timeline. How is my estimated due date calculated? Our baby due date calculator gives you the option of two methods to determine when your newborn will arrive: the date of your last menstrual period or your conception date, also known as ovulation date. Ovulation, cycle length, and other factors can shift your dates. Apr 23, 2025 · Estimate your conception date based on your birthdate with our conception calculator. First and foremost, it helps you ascertain the expected date of delivery, it is commonly used by health care facilitators to help determine due date of pregnancy. Instantly calculate gestational age or due date from any other reference point in the pregnancy. Apr 5, 2025 · Plan your pregnancy journey with our free Pregnancy Calculator. Texas Baby Care - Due Date CalculatorAre you expecting? Use this pregnancy due date calculator to find out when your baby is due. Oct 3, 2025 · Conception Date Calculator Develop a deeper understanding of a pregnancy by calculating the estimated date of conception, or the date the sperm fertilized the egg, with this free tool. Discover our Pregnancy Conception Calculator, designed to estimate your conception date using due date, menstrual cycle, or ultrasound data. Mar 11, 2024 · A Conception Calculator is a tool that estimates the date of conception based on the expected due date of the pregnancy, the first day of the last period, or an ultrasound date. This free pregnancy conception calculator estimates a range of conception dates based on a provided due date, last period date, or ultrasound date. WhenMyBaby has dozens of conception and pregnancy calculators, including pregnancy test calculator, implantation calculator, menstrual cycle length calculator, advanced ovulation calculator, ovulation test calculator, baby and family calculators. For the most precise conception dating, ultrasound measurements in Estimate ovulation, fertility window, conception, and due date with our easy-to-use Ovulation and Pregnancy Calculator. Our conception calculator, also known as a reverse due date calculator, is the answer to the question "When did I conceive?" as it estimates when your pregnancy was conceived. Mar 26, 2025 · A due date calculator may use the day of the last menstrual period or the date of conception to estimate the most likely delivery date. Fast, accurate, and simple to use! This free due date calculator estimates the due date based on the menstrual cycle, ultrasound, conception date, or IVF transfer date. Jun 4, 2025 · Find your due date, track pregnancy progress, milestones, and appointments with this easy-to-use pregnancy calculator based on LMP, conception, or IVF. Track ovulation, plan for pregnancy, and estimate your fertility window. So if you’re wondering, “Was it the weekend getaway? This pregnancy conception calculator helps you estimate the likely date of conception and your fertile window based on your last menstrual period, due date, or ultrasound date. Calculate your due date, conception date, and pregnancy week with ease. The calculator takes into account the average length of a pregnancy, which is about 9 months or 38-40 weeks, to calculate the most likely conception date. Easily calculate your conception date using our free Pregnancy Conception Calculator. A Conception Calculator is a simple, convenient, and effective tool for estimating conception and due dates. The most versatile pregnancy calculator. Calculate your conception date range from LMP, due date, or ultrasound data with medical precision. May 14, 2025 · Estimate ovulation, fertile days, next period, and due date with this easy-to-use conception calculator. Find out now! Calculate your estimated conception date and intercourse dates based on your due date with the Mama Natural Reverse Due Date calculator. us MiChildSupport This reverse due date calculator determines the conception date from the estimated due date or from last period to find out when a baby was conceived or when to try for a baby with a particular birth date. On this page, pregnant moms can calculate the conception date and weeks into pregnancy from the due date or expected date of baby's birth. Understanding your conception date can be important for many reasons, whether you’re planning a pregnancy, tracking fetal development, or simply curious about your beginnings. Use our free, accurate Conception Date Calculator to know how far along you are in pregnancy. Enter your last period and cycle length for accurate menstrual cycle predictions. If your doctor told you the baby was born early you may have to adjust the results back a cycle to find the correct data of conception. Conception Calculator: Estimate Your Likely Conception Date Use our Conception Calculator to estimate the likely date of conception based on the first day of your last menstrual period or your estimated due date. Conception Date Calculator Estimate when you conceived with our accurate conception date calculator. It uses the first day of your last menstrual period (LMP) or the date of conception to calculate the gestational age and estimated due date (EDD). The When Was I Conceived Calculator helps estimate the approximate date of conception based on your birthdate or due date. Jan 15, 2025 · Our Conception Calculator helps you estimate when you conceived based on your due date or last period. Our calculator is very useful to find the date that you or your child were conceived on. Conception calculators can also estimate the days when intercourse could have led to conception. Pregnancy Conception Calculator When you try to conceive, knowing the time for pregnancy becomes essential. Fast, private, and easy—for planning or tracking. mi. Redirecting Redirecting About A conception calculator estimates when an existing or previous pregnancy was conceived. Jun 6, 2025 · Our Conception Date Calculator uses your due date to estimate when you got pregnant. For this reason, the When Did I Conceive Calculator is a valuable tool for anyone who wants to determine when conception occurred based on their last menstrual period (LMP). Also learn what the #1 song and #1 movie were that week, and which famous people you share a birthday with! The most versatile pregnancy calculator. A conception calculator is a Free online tool that uses key reproductive dates—such as the first day of your last menstrual period (LMP) or your estimated due date—to calculate when conception most likely occurred. A conception calculator estimates the date of conception —the day when an egg is fertilized by sperm, beginning a pregnancy. What is a Pregnancy Conception Calculator? A pregnancy conception calculator is a specialized medical tool that determines the estimated date when conception (fertilization) occurred based on known pregnancy information such as due date, current gestational age, or last menstrual period. Feb 12, 2025 · Use this simple online tool to calculate your approximate due date 40 weeks later from the conception date. How to use BabyCenter’s Conception Date Calculator Our Conception Date Calculator uses your due date to help you figure out when you might have conceived. This app calculates exactly 280 days (40 weeks) from LMP to EDD, and accordingly for any date in between. Easily estimate your conception date based on your due date with our accurate and simple Day of Conception Calculator tool online. That’s why our calculator looks at your unique info to give the clearest estimate possible. Input conception or LMP date to see trimesters and current pregnancy week. Oct 29, 2024 · Conception Date Calculator: Find Out When You Conceived Expectant mothers often wonder, “ When did I conceive? ” Determining a conception date can be tricky, especially if symptoms of implantation or early pregnancy are minimal or if there were multiple instances of sexual intercourse within the fertile window. Get accurate results based on your due date or last period. Easily estimate your conception date, fertile window, due date, and gestational age with our accurate Date of Conception Calculator. ) Estimate your likely conception date and fertile window from LMP, due date, or ovulation test. Pinpoint potential conception windows with ease and accuracy. When starting with EDD, all results change depending on cycle length. Aug 15, 2025 · A conception calculator, sometimes known as a reverse due date calculator, can give you a rough idea of when your baby was conceived. A conception calculator provides estimates that are generally accurate within 3-5 days for women with regular cycles. Additionally, it is helpful to determine how long you have been pregnant, in order to calculate the possible birth date This conception calculator estimates conception date in case of an ongoing pregnancy or based on a date of birth. The Pregnancy Conception Calculator estimates the date of conception based on the expected due date of the pregnancy, last period date, or ultrasound date. Select the method you want to use to calculate the gestational age above and click on the calculate button. Our conception date calculator uses medically accurate algorithms to estimate when conception likely occurred. It calculates the conception date and fertile window when fertilization most likely happened, helping track pregnancy timeline and identify possible conception dates for family planning. Pregnancy length varies but is commonly around 40 weeks. By entering your last menstrual period and average cycle length, you can quickly get an overview of your fertility window and pregnancy timeline. How is my due date calculated? Conception Date: If you have been using an ovulation predictor kit or tracking your ovulation you may be able calculate your due date Oct 11, 2019 · Reverse Due Date: Conception, Symptoms, and Facts About Childbearing - Guide Authored by Corin B. Start calculating now! Reverse Due Date Calculator So you know your due date, and you’d like to know your conception date? Our reverse due date calculator is here for you. Whether you're calculating your due date, tracking your pregnancy week by week, or estimating your conception date, this tool simplifies the process. Estimate when you conceived with our accurate conception date calculator. When using the last menstrual period, we add 14 days. Use Due Date Calculator to predict your baby’s arrival with confidence and precision. Jun 9, 2025 · How to use BabyCenter’s Conception Date Calculator Our Conception Date Calculator uses your due date to estimate when you got pregnant. It uses Naegele's rule, the standard obstetric formula that adds 280 days to your LMP to predict your baby's arrival date. Calculate estimated conception date and day based on due date, ultrasound, or last period (LMP), using this free online pregnancy date calculator. Use our Pregnancy Calculator to calculate these dates for you. Get a personalized pregnancy timeline based on your last menstrual period and average cycle length—trusted by thousands of expectant parents. It’s important to note that while these calculators can provide a good estimate, they are not 100% accurate due to the natural variations in women’s menstrual cycles and Calculate your most fertile days and potential conception dates with our free online conception calculator. How does a reverse due date calculator work? At your first trimester ultrasound date, the sonographer will give you an estimated due date. Calculate your due date and learn fun and interesting facts about your child's birth date! Pregnancy Conception Calculator Calculate your estimated due date (EDD) using last menstrual period, conception date, or ultrasound measurements. This calculator allows you to calculate your due date, conception date, and fetal age. Ideal for cycle tracking and pregnancy planning. By entering a few simple details—such as the date of your Last Menstrual Period (LMP) or Estimated Due Date (EDD) —this calculator provides accurate predictions that help you Easily estimate the conception date based on birth date using our free When Conceived Calculator. A Pregnancy Calculator is a medical tool that estimates your due date, current gestational age, and trimester based on either your last menstrual period (LMP) or conception date. May 8, 2024 · This method of determining your conception date can be more accurate than date-based calculation, especially for women with irregular periods or who don’t know their last menstrual period date. This simple tool saves time and removes guesswork by providing an accurate timeframe for This free pregnancy conception calculator estimates a range of conception dates based on a provided due date, last period date, or ultrasound date. Conception usually happens about two weeks after the start of your last period — but everybody is different. Free online conception date calculator tool. . Sep 12, 2025 · A conception date calculator is a tool designed to estimate the date of conception based on various inputs such as the last menstrual period (LMP), cycle length, and the expected due date. Use our Pregnancy Due Date Calculator to find your estimated due date and see major milestones throughout pregnancy. Accurate predictions for pregnancy planning and tracking. Since conception occurs Conception Calculator The Conception Calculator estimates a range of days during which a woman is most likely to conceive, as well as a corresponding due date based on a woman's average menstrual cycle. MiChildSupport - micase. Using medically accepted formulas (Naegele’s rule for due dates, Mittelschmerz principle for ovulation), it accurately estimates: Conception date (based on due date or last period) Fertile window (5-day optimal conception period) Pregnancy milestones (trimesters, key development Conception Date Calculator Find your most probable conception date and fertility window using your cycle data. ) You might already have a pretty good hunch about when your pregnancy started – perhaps it was a particularly memorable occasion, or you were Get answers with the Most Accurate Conception Calculator. Conception Day Calculator Select the Criterion for the calculation Calculate Gestational Age Instructions: The conception date calculator uses gestational age to calculate the probable ovulation date and the fertile period. Trusted by moms-to-be on Calculator Hub HQ. Plan your journey to parenthood & estimate your baby's due date. Enter your last menstrual period and cycle length to estimate your conception date and fertile window. Aug 17, 2024 · What is a Conception Calculator? A conception date calculator is a tool that estimates when fertilization likely occurred based on various factors, primarily your due date or the first day of your last menstrual period. The reverse due date calculator allows you to discover the date of conception, and the possible day the successful intercourse happened. Get the due date using your last menstrual period to get the due date of your baby. Whether you’re trying The date of conception calculator (conception calculator) is very useful for women who are either trying to get pregnant or in the pregnancy period. Estimate conception date with our free pregnancy conception calculator. Whether you’re trying to conceive, recently found out you’re pregnant, or Mar 11, 2024 · It’s a tool that estimates the date of conception based on information such as the expected due date of the pregnancy, the first day of your last menstrual period, or an ultrasound date. Calculate your estimated conception date and intercourse dates based on your due date with the Mama Natural Reverse Due Date calculator. This calculator lets you customize that duration if Apr 25, 2022 · This conception calculator calculates your conception date based on the date of your last period, your ultrasound date, or your due date. The Pregnancy Due Date Calculator estimates your baby's arrival with ease. Jun 13, 2025 · Calculate your baby's due date easily using our Baby Date Calculator. Whether you’re trying Discover our Pregnancy Conception Calculator, designed to estimate your conception date using due date, menstrual cycle, or ultrasound data. Our free pregnancy calculator can estimate your pregnancy due date based on the date of last menstrual period , conception date, IVF Transfer & ultrasound scan. Jul 31, 2025 · What is a Pregnancy Gestation Calculator? A Pregnancy Gestation Calculator is a digital tool that estimates how far along a pregnancy is, typically in weeks and days. Pregnancy Due Date Calculator and Conception Calculator When is your baby due? Use this pregnancy calculator to find your due date based on the date of your last menstrual period, conception date, IVF three-day or five-day transfer date, or date of your last ultrasound. Simple, fast, and helpful for family planning. The calculator is most accurate when you know if you were born early or late. Free to use anytime. Discover when you conceived with precision using our When Did I Conceive Calculator. Calculating Conception “When exactly did I get pregnant” is a difficult question to answer precisely because calculating conception is done by using the first day of your last menstrual period or an ultrasound date. Pregnancy Calculator Calculate your due date, conception date, and track your pregnancy week by week. The Conception Date Calculator is an advanced yet easy-to-use online tool designed to help women and couples estimate their likely conception date, fertile window, gestational age, and estimated due date (EDD). Using reverse pregnancy calculations, it determines the approximate date of fertilization by working backwards from known pregnancy milestones. Pregnancy Calculator Find your estimated conception date, due date, and current pregnancy week using our accurate conception calculator. A conception calculator is a simple Use conception calculator to estimate the likely date of conception with ease and accuracy, helping you plan or track your pregnancy journey confidently. Free pregnancy calculator to estimate due date, conception date, and milestone dates during pregnancy. Determine when you likely conceived based on due date or last menstrual period. Jul 2, 2025 · A reverse due date calculator doesn’t consider the date of your last period, but uses your estimated due date and works backward for a date of conception. The conception date is merely an estimate since it is difficult to know when ovulation exactly occurs. It's an invaluable resource for expectant parents and healthcare providers, offering insights into the journey of pregnancy from the very beginning. Our new Pregnancy Calculator reveals the conception date, the due date and the end of both of the trimesters. Useful for understanding your pregnancy timeline. Plan your pregnancy today! Conception Date Calculator Our online tools will provide quick answers to your calculation and conversion needs. Therefore, if you have your due date, you can subtract 40 weeks from this date to determine your last menstrual period. A conception date calculator provides an estimate based on typical pregnancy duration of 40 weeks. Due date and birth date methods are typically more accurate than LMP-based calculations, especially for women with irregular cycles. Helps in planning for pregnancy and understanding gestational age. Better than just guessing, we’ll help you determine your (approximate) date of conception based on the due date you got from your ultrasound screening or your physician. Plan your pregnancy journey precisely with our Pregnancy Conception Date Calculator. Learn how it works, here. (If you don't know your due date yet, simply head over to our Due Date Calculator to find it. Apr 15, 2025 · The Pregnancy Conception Calculator is an essential tool for expectant parents and those planning pregnancy. Enter date of last menstrual period, gestational age (on today's date or other ultrasound date), date of conception, OR estimated due date to estimate the other dates. This conceived calculator also estimates a possible range of days during which sexual intercourse might have led to conception based on sperm being viable for 3-5 days within a woman's body. To achieve this, calculators use formulas based on the average timing of ovulation and the average length of pregnancy to estimate the date of conception. Generally, the due date is calculated 40 weeks after your last period. If you are interested in receiving a free pregnancy verification ultrasound, you must first take a free pregnancy test at our center. Find out when you conceived using our pregnancy conception calculator. What Is the Conceived Date Calculator? The Conceived Date Calculator estimates the approximate date of conception based on your due date and typical pregnancy length. ) You might already have a strong suspicion as to when your pregnancy started – maybe it was an especially memorable occasion, or you were tracking your ovulation or using Mar 1, 2025 · Сonception date based on birthday Your conception date is closely tied to the timing of your birth. Our conception calculator helps you estimate this important date and provides Nov 14, 2025 · Advanced pregnancy due date calculator — LMP, Ultrasound, Reverse Ultrasound (EDD known), or IVF/ART. Only EDD is affected by cycle length ≠28 days when calculating from LMP, EGA, and EDC. Knowing when you conceived is an important part of determining your next step. Did we solve your problem today? This calculator estimates when conception most likely occurred for a recognised pregnancy. kvtmuzbjynnmyqutjkyrfxmyiiksjwmqpnvoeipqtphpypesmzdgufukrldpskfhrpvhixnwz