Tuesday, August 24, 2010

Are there any documented cases of a woman giving birth to twins with different fathers?

I am not a fertility expert, but does it not seem reasonable that if two eggs were available for fertilization, a common occurence, that if a woman were to be with two or more men during the ovulation window, that it is POSSIBLE that a single sperm from seperate men could fertilize the seperate eggs...Are there any documented cases of a woman giving birth to twins with different fathers?
No. This does not happen. Even if you were to have those circumstances arise, once an egg is fertilized, then the body signals all other fertilization to cease.





I think the only way a two fathered pregnancy would occur is if you had sex with both men at the same time, but even then, it is highly unlikely.Are there any documented cases of a woman giving birth to twins with different fathers?
I'm sure it's in the realm of POSSIBILITIES, but the probability of that is like, 1 to like, 1,000,000,000,000.
IMPOSSIBLE people arent like dogs
Good question though.
Good question...I'm sure it's possible. But jeez, what a ho!
I have been wondering this too!! Although I think the woman would have to have intercourse with the two men at the same time, otherwise the first man's sperm would most likely fertilise both eggs.





I'd like to know about this.
Actually that's pretty clever. That way she gets two checks instead of one
actually there are documented cases. i can't remember where i found them but i believe the most recent case was in Italy. obviously the sperm would not be fertilizing the same egg. but if two eggs were released during ovulation, and the women slept with two different men very close to one another then there is a chance of both men fertilizing the eggs. although, the chances are slim, thats why its such a freak occurence. but i'll see if i can't find that article and post it here.
Actually, this is possible and has happened. I'll see if I can find anything about it online, but it's more than possible. Especially if one ovary releases one egg, and then the other releases an egg they both can be fertilized within a couple of days of each other and produce 2 completely biologically different twins. Twins are only identical when one egg splits into two, that has the chance of happening like every 4 in 1000 births, no matter what race you are.





Here's a link about it. http://www.dnacenter.com/media/twins-dif鈥?/a>





Heteropaternal superfecundation is very rare in humans, though more common in other animals. This is primarily due to the predominance of 1:1 heterosexual partner pairings among humans. A woman who has sexual relations with two or more men at short intervals within the same ovulatory period can be impregnated by both men.





There have been noted examples in the past. The classic case, which is discussed in Williams Obstetrics (1980), was recorded in 1810 by John Archer, the first doctor to receive a medical degree in the United States. According to Archer, a white woman who had sex with a black man and a white man within a short time subsequently gave birth to twins--one white, one bi-racial. Other cases have been reported since.
hmmm!
I heard that it's possible and that it happened before in real life...not just in a soap opera.
There was a special on a few months ago but it was invitro and the sperm of two men got mixed...both men a different race. So this couple had two boys and one was black and one white. It was weird but apparently things like that can happen.

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