A member asked:

Date is april 5, 2015 and conception date july 13,2014 and today 27, and your 12 weeks 6 where does the other 2 weeks come from?

A doctor has provided 1 answer
Dr. Sraddha Prativadi answered

Specializes in Integrative Medicine

Pregnancy dating: The other two weeks comes from the first two weeks of the menstrual cycle in which the woman got pregnant. Pregnancies are dated by the start date of the period of the menstrual cycle in which the woman conceived, and you are astute in noticing that there was not even pregnancy tissue in the body at that time. This is a dating convention used to determine the due date.

Answered 5/11/2015

3.7k views

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