You may use our online due date calculator as a tool to help you estimate the date of your baby's arrival. The average length of a pregnancy is 280 days (40 weeks) from the day your last menstrual period began.

This tool cannot provide an absolute answer because pregnancies vary, so be sure to talk to your healthcare provider about your expected due date. You should also have regular prenatal checkups at your obstetrician's office so the progress of your pregnancy can be monitored.

Please select the day your last menstrual period began.