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A female asked:

1st day of my period on jul 16 had sex on july 24 but took the after day pill 17 days later i got my period aug 2 had sex aug 22 when did i conceive?

1 doctor answer3 doctors weighed in
Dr. Mary David
Specializes in Obstetrics and Gynecology
Could be either time: Since the emergency contraceptives are only 95% effective if taken within the first 24 hours after unprotected intercourse and does cause irregular bleeding and conception is possible at pretty much any time in the cycle you could have possibly conceived either time. An ultrasound for dating will tell you which is most probable. Hope this helps.

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Last updated Sep 12, 2015

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