See Calculate Pregnancy
Background. Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy. Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle).
Pregnancy calculator version 0.1 writen by nicholas tsakiris alston. The pregnancy calculator will do the rest! Follow your baby's new developments we calculate your due date, how many weeks pregnant you are, and the major milestones ahead!
If you deliver on your due date, your baby is actually only 38 weeks old, not 40.
Your doctor will give you your official due date after your first prenatal visit. The pregnancy due dates calculator calculates pregnancy dates, forward from last period or backward from due date. As your pregnancy is calculated from the first day of your last menstruation, your baby does not yet exist, and your body is preparing for the at 2 weeks pregnant, you're technically not pregnant yet. The free online pregnancy calculator is extremely easy to use. Calculate pregnancy due date, including the day of the week, and see how many weeks along you are. How to calculate pregnancy due date with this calculator? Use our pregnancy calculator to find out how many weeks pregnant you are, and your due date, based on the first day of your last menstrual period. Day by day pregnancy calendar.