![]() First, calculate current gestation using one of the other methods, then go to this section and choose a gestational age. ![]() First, calculate current gestation using one of the other methods, then go to this section and choose past or future date.ĭate at future or past gestation: Use to calculate the date at a specific gestation (enter in weeks). Due dates can be estimated using a number of. Probable date of conception (about two weeks after the last menstrual period) 3. While the due date is often estimated as a single date, it can be helpful to consider a range of due dates, since only 4 of births occur on the estimated due date. Our easy-to-use pregnancy calculator is the number one most popular way to calculate your due date based on the date of your last menstrual period. Gestation at a future or past date: Use to calculate gestation in the future or past. The due date, also known as the estimated date of confinement, is an estimation of when a pregnant woman will deliver her baby. This calculates the current gestational age and gives an estimated date of LMP.Ĭonception date: If conception is known (eg, date of insemination, ovulation or egg retrieval), then the due date can be calculated by adding 266 days. Very few babies are actually born on the day they were due. The Due Date Calculator estimates the delivery date of a pregnant woman based on her last menstrual period (LMP), ultrasound, conception date, or IVF transfer date. But keep in mind that your due date is only an estimate. By calculating your due date, you’ll have an idea of your baby’s birthday. Ultrasound due date: If a due date has been calculated from an ultrasound in the first trimester, the reverse calculation method is preferred. Overview What is a due date calculator A due date calculator helps you estimate when your baby will be born. INSTRUCTIONS 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. Knowing when an expecting mom has conceived is quite challenging to find. Pregnancy Due Dates Calculator Calculates pregnancy dates from last period, gestational age, or date of conception. Last menstrual period (LMP): The LMP calculation uses the standard method of the first day of your last menstrual period plus 280 days to calculate the due date. Taking the last day of your missed period as the base, the due date is calculated. ![]() This calculator allows you to calculate the following: The due date is calculated by adding 280 days, i.e., 40 weeks to the first day of your last period (if it is a 28-day cycle).
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