A 23-year-old female asked:
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with a normal pregnancy, all ultrasounds including ones in the 1st trimester showed lmp 10/15/12. could conception have occurred after 11/7/12?

1 doctor answer
Dr. Collin Smikle
35 years experience Obstetrics and Gynecology
Pregnancy sono: If the ultrasounds were done in the first trimester and all confirm the 10/15/12 lmp, then there is little chance that conception occurred after 11/7/12. The first trimester ultrasound is usually sensitive to +/- 3 days.
Answered on Jan 27, 2015
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