Find Out Conception Date
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The Pregnancy Conception Calculator estimates the date of conception based on the expected due date of the pregnancy, last period date, or ultrasound date. The date of conception is the day on which a person's baby is conceived. The calculator also estimates a possible range of days during which sexual intercourse might have led to conception based on sperm being viable for days within a woman's body. When exactly did I get pregnant? Many women often ask this question when trying to figure out the exact day their pregnancy began.


We calculate your due date, how many weeks pregnant you are, and the major milestones ahead! As soon as you find out you're pregnant, the next thing you want to know is "When am I due? Just input your dates and find your due date right now. For an even better way to calculate the pregnancy due date and keep track of your pregnancy, download the Obie app by babyMed here.

Calculating an accurate due date is an important first step in pregnancy.

First day of last period

The calculation of the estimated due date EDD is based on the day of the date of ovulation and fertilization. For an even better way to calculate the due date and keep track of your pregnancy, download the Obie app by babyMed here. Pregnancy, on your own terms Get expert guidance and personalized insights on your path to getting pregnant and through every week of your pregnancy. The first step is to know the first day of your last menstrual period and the length of your menstrual cycle.

How is my due date calculated?

Enter the date of the first day of the last menstrual period and your average cycle length. Alternatively, you can also enter the day of ovulation, the weeks and days of the pregnancy on ultrasound, or the IVF egg or embryo transfer date. The due date calculator will then calculate the exact date the baby will be due, as well as other important events such as the date of implantation, when the baby will start moving and dates for important tests like amniocentesis, ultrasound, or glucose screen.

Get our Childbirth Course to plan for your big day including how to identify true labor, pain relief, natural birth options and more!

Conception calculator based on due date

Your pregnancy weeks help determine blood tests, ultrasound examinations, and more importantly when you can expect your baby to be born. They also help you identify certain situations to learn what is normal and when to have procedures done. What is normal at 26 weeks may not be normal at 32 weeks. Also, tests that should be done at 20 weeks but are done at 16 weeks could be interpreted incorrectly.

Common tests and procedures

This pregnancy calculator helps you find out exactly how many weeks pregnant you are right now, details your baby's development, and precisely what is happening to your body at the moment. Just pregnancy due date or other information to create and calculate a personalized weekly and daily pregnancy calendar.

The babyMed Monthly Pregnancy Calculator and Calendar is a week-by-week pregnancy calculator and calendar with information for each day of your pregnancy. This calculator also lets you know the day when you can expect implantation the day that the embryo attaches to the lining of the uterus.

Conception date

Enter the exact date of the first day of your last menstrual period and we will calculate the best days to have sex. The calculator will let you know the fertile days to improve your chances of getting pregnant. Enter first your last period or due date, and we will tell you automatically how far along you are today. If you want to know how far along you are on a certain date, enter that date next and we will calculate next how far along you are. Get pregnancy alerts and updates about your baby's development!

We are not using the terminology "conception" because the definition of conception is unclear and potentially confusing. The word "conception" has different definitions and meanings:. Using "ovulation date" or "fertilization date" are more precise descriptions of what's happening with the pregnancy and avoid confusion, they are more clear because both ovulation and fertilization usually happen on the same day, within hours of each other.

Intrauterine insemination IUI is a procedure that puts sperm directly inside your uterus with a small catheter bypassing the vagina and cervix. IUI is usually done within a day prior to or on the day of ovulation.

For practical purposes, the day of IUI can be considered the same day as ovulation and fertilization. Find out why estimating the correct pregnancy due date is important. The LMP is the date of the first day of your last menstrual period. It is the first day that your last menstrual cycle began.

It is the first day that you see bright red blood, not just a little brown spotting. You should keep track of your LMP each month, either electronically, online, or at home in a calendar. That is the date you use when entering the LMP. If you don't know the exact date of ovulation, then use our ovulation calculator to the approximate first day of your last menstrual period in a day cycle. If your cycles are longer or shorter than 28 days, then the day of ovulation may change, and this calculator takes that into consideration when calculating your estimated due date.

How to calculate your due date: how far along am i?

You can also use this calculator as a reverse due date calculator to find out when you became pregnant. Just due date and we will calculate the estimated day of conception. In addition, you'll get a range of dates that you may have become pregnant. Conception calculator use differs from one woman to the next. If a woman has had unprotected sex with more than one man, she may want to use the conception calculator to give her an idea who the father may be. However, if there is no menstrual cycle between the bouts of unprotected sex, a conception calculator will not effectively reveal paternity.

Only a paternity test will reveal the true father of the child in this case. There is no way of knowing the exact date of conception unless a woman tracks her cycle knows the exact day of ovulation and has unprotected intercourse only once per cycle.

However, you can make an estimated guess! The conception calculator will give you an estimated date of the probable time when conception occurred. Yes, a conception calculator can be wrong.

Conception date - when did i conceive and how many weeks am i?

Ultrasounds can also be wrong as can home pregnancy tests. There is no perfect system for estimating an exact conception date unless intercourse happened only once between menstrual cycles. A conception calculator uses the first day of the last menstrual cycle to determine the probable date of conception. Ultrasound uses the size of the fetus to estimate gestational age. Ultrasound dating can change throughout pregnancy based on the size of the fetus, but the conception calculator will always offer the same probable date of conception based on the last menstrual cycle and length of the average menstrual cycle.

There is no difference between the two. The doctor uses the first day of your last menstrual cycle to estimate due date and conception date in much the same way the online conception calculator works. All are based on the input, so you need to know the accurate first day of their last menstrual cycle to achieve the best and most reliable. List of references for calculating fertility and pregnancy events.

References and literature used to create the formulas for the babyMed pregnancy due date calculator. Use the week-by-week links below for detailed information about what happens each week during pregnancy. Don't know your due date? Use our Pregnancy Calculator to find out the exact due date, with dates for exciting pregnancy events!

Track your cycle, get pregnant, and have a healthy pregnancy. Log In Up. Follow us on Instagram. Our app takes the guesswork out of getting pregnant. Get Obie for iOS Now! Tools ยป Pregnancy Tools.

How to calculate your due date: How far along am I? Date of Event. Exact calculation of the due date Calculating an accurate due date is an important first step in pregnancy. Download app. Keyword Tags:. Pregnancy Calculators.

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Pregnancy Calendar. Due Date Calculator.

Pregnancy Due Date. Obie gives you expert personalized guidance through every stage of your pregnancy journey.

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This conception calculator helps you to estimate the conception date of your child.


Most pregnancies last around 40 weeks or 38 weeks from conception , so typically the best way to estimate your due date is to count 40 weeks, or days, from the first day of your last menstrual period LMP.


Use this calculator by plugging in either the date of your last menstrual cycle or the date of conception.


Use the drop-down menu to calculate your due date or current week of pregnancy.