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A 24-year-old male asked:

Had sex on 17 my ov date was 22 took two bc pills norethisterone acetate+ethinyloestradiol after 42hrs. how much chances of getting pregnan?

1 doctor answer1 doctor weighed in
Dr. Bryan Treacy
Gynecology 35 years experience
Hard to say: Emergency birth control is most effective if taken within 24 hours of unprotected intercourse. Based on the timeline, however, pregnancy chances are reduced since sperm are viable in the fallopian tubes for about 72 hours on average.

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Pakistan
A 24-year-old male asked:

Had sex on 17 my ov date 22 took 2 bc pills norethisterone acetate+ethinyloestradiol after 42hrs. Got bleeding on 24 to 26 pregnancy chances?

1 doctor answer1 doctor weighed in
Dr. Bryan Treacy
Gynecology 35 years experience
Variable: The chance of pregnancy in any given cycle is approximately 17%. Given your use of the pill and the timing involved, the chance of pregnancy should be much less than this.

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Last updated Sep 29, 2016

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