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The uterus has a lining of blood in it. When the unfertilized egg passes through the uterus it sheds this lining which causes the blood to come out.

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Is it possible to get pregnant when you swallow sperm?

No. The reproductive system of a female is separate from the digestive system in every way. You cannot get pregnant from swallowing sperm.


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On average, eggs are released every 28 days in the female reproductive system. There is variation, however, and some women may release eggs a little more often or significantly less frequently.


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