Pregnancy can come with a lot of unknowns, but your estimated due date doesn’t have to be one of them. Crunch the numbers with our due date calculator to plan for the arrival of your baby.

A due date calculator works by determining when your baby will arrive. It does this in a couple of ways: either by using your last menstrual period (LMP) or your conception date.

The average pregnancy is calculated at 282 days (40 weeks) from the first day of your last menstrual period. However, babies rarely keep to an exact timetable, so a full-term pregnancy can be ...