How long does a normal pregnancy last?

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THE HUMAN QUESTION #54

How long does a normal pregnancy last?

280 days

Explanation

One scientific term for the state of pregnancy is gravidity (adjective "gravid"), Latin for “heavy”. A pregnant female is sometimes also referred to as a gravida. A normal pregnancy lasts 280 days, counted from the first day of the last menstruation. Variations are very common, however. Normally, a pregnancy is split into three trimesters: weeks 1-12, 13-28 and the rest.

Statistics

Answer time 0s (0s). 54% have previously answered correct on this question. The question was created 2008-04-11.