A member asked:

When i had a ultrasound done they said i was 5 weeks and 6 days does that mean i'm really 3 weeks and 6 days and then they add the 2 weeks?

A doctor has provided 1 answer
Dr. Bruce J. Stringer answered

Specializes in Radiology

Yes: I assume you are asking how long ago you conceived? In that case, you are correct. Routine sono dating is computed from the presumed first day of the last period. Actual conception usually occurs 2 weeks later.

Answered 12/13/2013

4.7k views

Thank

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