Dating confusion...: The dating of pregnancy can be confusing. Full-term Pregnancy lasts for about 280 days or 40 weeks. If you get out a calendar and count 40 weeks, you will discover that some months (like December) have 5 weeks and some have 4. Saying pregnancy lasts 9 months is an approximation. To be precise, you need to use days or weeks, not months. Still 1 month is quite a difference. Best ask your doc
Answered 7/5/2015
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