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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Ejaculating Outside Cause Pregnancy?

my girlfriend has very irregular periods, there is no fixed date for it. on january 20 we two had some sexual activities after which i ejaculated outside as we were not having intercourse, then i wiped my penis and wore my underwear, after about 20-25 minutes we again had some activity, this time i was on top of her but with my underwear on, the tip of my penis got in just .5 inch in her vagina..can by any chance she be pregnant??? plz help
Thu, 15 Oct 2015
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OBGYN,  's  Response
Hello, and I hope I can help you today.

It is really not possible to impregnate someone with the barrier of your underwear between you, especially if you didn't ejaculate. Sperm die when exposed to air, so even if there was some semen left from your earlier act of intercourse, it would have died on your skin and on your underwear.

Furthermore, it is theoretically possible to impregnate someone without penetration, but again, the sperm must be close to the opening and in a moist area so it can swim in liquid. Withdrawal is not a 100 percent effective method of contraception, but if there was no penetration, your chances of impregnating someone from ejaculating outside the vagina is also nearly impossible.

So I would not worry in this situation about unplanned pregnancy, and I think you and your girlfriend need not worry about this type of activity causing pregnancy.

I hope I was able to answer your question and that my advice was reassuring.

Best wishes, Dr. Brown
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Can Ejaculating Outside Cause Pregnancy?

Hello, and I hope I can help you today. It is really not possible to impregnate someone with the barrier of your underwear between you, especially if you didn t ejaculate. Sperm die when exposed to air, so even if there was some semen left from your earlier act of intercourse, it would have died on your skin and on your underwear. Furthermore, it is theoretically possible to impregnate someone without penetration, but again, the sperm must be close to the opening and in a moist area so it can swim in liquid. Withdrawal is not a 100 percent effective method of contraception, but if there was no penetration, your chances of impregnating someone from ejaculating outside the vagina is also nearly impossible. So I would not worry in this situation about unplanned pregnancy, and I think you and your girlfriend need not worry about this type of activity causing pregnancy. I hope I was able to answer your question and that my advice was reassuring. Best wishes, Dr. Brown