Pregnancy Calculator
This is a pregnancy calculator for the estimation of the pregnancy schedule based on the due date. Your healthcare provider will tell you the due date, usually base on the sonograph, on your prenatal visit. If you do not know your due date, you can estimate it use our due date calculator based on your biological cycles.
The results of this pregnancy calculator are estimation based on average. The actual length of pregnancy depends on various factors. For example, the first pregnancy tends to last longer than subsequent pregnancies. Fewer than 10% of births occur on the due date; 50% of births are within a week of the due date, and almost 90% within two weeks.