Pregnancy Calculator

Use this pregnancy calculator to estimate gestational age from the first day of the last menstrual period, with an optional cycle-length adjustment. It helps you see how many weeks and days pregnant you are, which trimester applies and what estimated due date the standard calculation gives.

The tool also shows an estimated conception date, approximate pregnancy month and how many days remain until the due date based on the reference date you choose. It is informational only and does not replace prenatal care or an ultrasound assessment.