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Ask Dr. Norm S. Your Own Question
Dr. Norm S.
Dr. Norm S., Board Certified OB/GYN
Category: OB GYN
Satisfied Customers: 11231
Experience:  Over 30 years of experience in OB/GYN practice, including teaching students. Fellow of American Board of Obstetrics and Gynecology.
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I had sex on March 18 with another guy .I went to the dr on

Customer Question

I had sex on March 18 with another guy .I went to the dr on April 15 . they told me that I was 8 1/2 weeks. It's him the father?
Submitted: 1 year ago.
Category: OB GYN
Expert:  Dr. Norm S. replied 1 year ago.
Did you have an ultrasound to date the pregnancy?
When in March did you have sex with your partner? Thank you.
Customer: replied 1 year ago.
They told me that my due date was on November 20, I don't have count on the times that I sex with my partner on March we were fighting when I had sex with the other guy. But I'm sure that at the biginning of March we had sex
Expert:  Dr. Norm S. replied 1 year ago.
Assuming that your dates are from an ultrasound, that should be accurate within about 5 days.
With the ultrasound showing you at 8 1/2 weeks on April 15, that means that you conceived about March 1 (February 23 to March 6).
So you could not have conceived March 18. It's not possible that this pregnancy is from sex on March 18.

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