Pregnancy week-by-week tracker

Enter the first day of your last menstrual period (LMP) or your estimated due date. The tracker shows your current week, trimester, baby size and key milestones.

Trimester
Days pregnant
Days remaining
Due date

Week milestones

Baby size:

FAQ

Which date should I enter?

If you know your LMP, enter that — the calculator computes the rest. If you only know your due date (e.g. from a scan), enter EDD and we work backwards.

Are these dates exact?

Pregnancy is dated from LMP, so most pregnancies last about 40 weeks. Conception happens around two weeks after LMP. For exact dating ask your doctor — ultrasound dating in the first trimester is the most accurate.