A member asked:

My edd says am due on june 10 and my lmp was 17 september and think i conceived in october around the 9th which makes ma edd july so am confused?

A doctor has provided 1 answer
Dr. Keshab Paudel answered

Specializes in Internal Medicine

Please see below : Naegele's rule is a standard way of calculating the due date for a pregnancy. The rule estimates the expected date of delivery (edd) by adding one year, subtracting three months, and adding seven days to the first day of a woman's last menstrual period (lmp). The result is approximately 280 days (40 weeks) from the lmp.

Answered 4/4/2014

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