A 28-year-old female asked:
on 9/11/13 i was told at my vaginal ultrasound i was 6weeks 3days. when could have conception have took place?
1 doctor answer
Dr. Olivia Liao answered
30 years experience Ophthalmology
Margin of error: You would back up from 9/11 about 6 and a half weeks. But keep in mind there is a margin or error on ultrasound dating: http://www.Medscape.Com/viewarticle/703501_3.
Answered on Oct 1, 2013
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