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A member asked:
My lmp was march 24 i got a positive pregnancy test a week after i missed my next period. why is my edd is january 13? when it should be in december
A doctor has provided 1 answer
EDD is Dec. 28 if...: If cycles are 28 days long, the EDD should be December 28 for a Last Menstrual Period that started March 24. If there was a "dating ultrasound" scan done between 8 and 11 weeks of pregnancy, that scan should be more accurate than counting from an LMP. When counting from an LMP, the EDD depends on the cycle length... meaning that a really long cycle length could push the EDD out to January 13.
Answered 11/27/2017
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