A member asked:

I'm had an ultra sound and it said i was 19 weeks and 6 days what day did i conceive so i can see who he father is i made a mistake?

2 doctors weighed in across 2 answers
Dr. Sheila Calderon answered

Specializes in Internal Medicine

Difficult: If you have had many sex partners you may try to figure out who you were with about 20 weeks ago. If unsure consider dna testing when the baby is born.

Answered 9/12/2013

4.9k views

Thank
Dr. Bruce J. Stringer answered

Specializes in Radiology

Date of ultrasound?: You need to tell us the day on which the ultrasound was done in order for us to give you our best guess about the time of conception. At almost 20 weeks, the uncertainty could be plus or minus 1-2 weeks! were there any earlier exams?

Answered 9/13/2013

4.9k views

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