The pregnancy due date calculator will display the estimated date of ovulation and the expected pregnancy due date of your baby. This estimate is based on the last menstrual period and the estimated date of conception. Your pregnancy due date is calculated by adding 40 weeks (280 days) to the approximate first day of your last menstrual period or 266 days to the day of ovulation.

Try our Reverse Due Date Calculator to find out when you became pregnant. There, you can enter your due date and we will calculate the exact days of conception. More importantly, we will provide the range of dates that you may have made love and got pregnant.

The pregnancy due date calculator will display the estimated date of ovulation and the expected due date of your baby. Calculate your pregnancy due date with our pregnancy calculator, plus find out how many weeks you are on a certain date or on which date a certain week will be.