A member asked:

When did i conceive? i had sex, 06/16 took plan b 16hrs after. on 07/3 had sex again. expected period day the 07/04. on 07/10 positive pregnancy test

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Conception: You are going to need a dating ultrasound to tell when you conceived. But, Plan B only works 50% of the time. That is why regular birth control is much more effective at preventing pregnancy. It would be very unlikely for any test to be able to pick up pregnancy on 7/10 from sex on 7/3. You most likely got pregnant in June. Here is a tool I recommend: http://www.babymed.com/conception-calculator

Answered 7/23/2014

3.9k views

Thank

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