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Spermatazoid motility and pregnancy

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Hello, I have a question regarding oral sex.
My partner and I, not having a condom at the moment, decided to try oral sex instead.
After I gave him a blowjob, we kissed, and shortly after that, he moved on to licking and sucking on my vagina. He never ejaculated, but there was a very small amount of pre-cum on the tip of his penis.
Is there any chance that the sperm found in the pre-cum could have transferred from my mouth to his saliva, thus into my vagina? If it is possible, could this put me at risk of becoming pregnant?
If it's of any importance, this happened a week and two/three days after the end of my period.

Thanks for your help!

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replied August 16th, 2009
Am I Pregnant Answer A7060

According to the data you provided (pre-ejaculatory fluid that was transferred from the penis into one mouth and then into another mouth and further cunnilingus), pregnancy is very unlikely. The pre-ejaculatory fluid might contain a small number of spermatozoids capable for fertilizing the female egg, but they still need an environment that is not hostile in order to survive. They have to reach the uterus as fast as possible. The chances for conception decrease when the time needed for the spermatozoids to reach the uterus is increased.

Cunnilingus is not an action in which the spermatozoids are inserted deep in the vagina, which increases significantly the distance they would have to pass before entering the uterus. Also, when taken in consideration the fact that you had intercourse two/three days after the end of your period (with 28 days average menstrual cycle length and 3 days menstrual period length), the chances for pregnancy are reduced almost to minimum.

You might want to visit your gynecologist to consult about your doubts and to rule out pregnancy for sure.

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