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What is the low end of the normal range of a human gestation, when dating a pregnancy from the last menstrual period (LMP)?

User Anm
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Answer: The average length of human gestation is 280 days, or 40 weeks.

Step-by-step explanation:

It is found that few women know the exact day they ovulated or conceived, an ultrasound performed in the first trimester of pregnancy has proven to be the most accurate way to date a pregnancy. ... If the ultrasound date is within seven days after your LMP date, so it will keep your LMP date.

User Stramin
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