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If a woman has sex with two different men can the child have the DNA of both men and the women? The sex was say within three hours of each orgasm.
Question Date: 2012-09-15
Answer 1:

In rare cases, two sperm (from one man) can enter one egg at the same time, resulting in 3 sets of genes rather than two. This is called triploidy. Most cases of triploidy are not carried to term. On the rare occasion of a live triploidy birth, the child often has serious birth defects. After doing some research, I have not found any cases of triploidy in which one egg was fertilized by two different men. However, it is possible for a woman to have fraternal twins with different fathers. A woman typically drops only one egg per menstrual cycle from her ovaries, but once in a while two eggs will drop. If a woman has unprotected sex with two men within about 5 days of each other (sperm can survive inside a woman for about 5 days), and if she happens to drop two eggs at that time, each egg could be fertilized by a different guy.

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