A member asked:

At 7 weeks pregnant are you really 5 weeks? how does that work

A doctor has provided 1 answer

Confusing dates: We calculate the length of pregnancy starting with the first day of the last menstrual period prior to conception (which is usually about two weeks later in a 28 day cycle.) it is easier for most women to remember when their last period started than know exactly when they conceived. Therefore the length of pregnancy is 40 +/- 2 weeks from the start of the last period.

Answered 2/27/2014

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Related Questions

A member asked:

I'm five weeks pregnant I have really bad bloating is that normal?

A doctor has provided 1 answer