How far along am I

How many weeks pregnant are you?

Enter the first day of your last period. We'll tell you exactly how far along you are, what trimester, what's developing this week, and how many days until your due date.

First day of last menstrual period (LMP)

Average cycle length

Most cycles are 28 days. We adjust the math for shorter or longer cycles.

Next, try

Track your weight gain by weekpregnancy-weight →See when to expect baby movementbaby-movement-timeline →

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