As soon as the sperm burries its head into the woman's egg, all of appearance and your dominant personality traits are set. (Technically, you could say they are predetermined before birth too.)
It is impossible, as soon as the Sperm penetrates the egg it will create barrier that no other sperm can penetrate.
Just one ! yes only one sperm cell penetrates a egg but on rare ocasions two will but that's like a one in a million chance..
Ovum has a layer of zona pellucida around itself. When a sperm enters the ovum, the cortical granules present in the ovum, causes the thickening of the zona pellucida. This prevents the entry of other sperms in the ovum and only one sperm is able to fertilize the egg.
as soon as a single sperm fertilises the ovum a change of composition takes place in ovum's outer layer forming zona pellucida which prevents the penetration of other sperms.
as soon as the sperm fertilizes the egg
You can become pregnant about 8 days from having your period. Its a better time to ensure you become pregnant. Also, you should be the one laying down when your partner ejaculates into your vagina to ensure that his sperm is well inside, but if you are on top of him while he does, its less likely to happen as the sperm can flow out of the vagina easier. Try refraning from going to the bathroom as soon as you both have ended intercourse. That way the sperm can properly get inside you.
The male sticks his Penis in the females vagina and humps.... And his testicles hold and make the sperms, and as he humps the female, sperms enter inside the vagina, and sooner or later the female grows a baby to give birth soon.
A boy can begin to get a woman pregnant as soon as he makes viable sperm. This begins before he has finished puberty, but at a slightly different time for each guy.
A woman can become pregnant in a few hours. This process can also take a few days. This depends on the woman and her eggs.
If the sperm goes in a girl's body, they will get pregnant soon. but if in a guy's body, i dont know. lol :)
=about 2weeks after it happens kay o.=
One to two weeks.
Sperm and Spermicides which are little creatures used to reproduce when they are ejected into a vagina. Unless it yellow then thats pee:) Semen and sperm cells, spermicides are creams used to kill the sperm during sex. When you first start ejaculating, that's what it's called, it may just be seminal fluid with no sperm but they will develop soon which means you can get a girl pregnant. So don't.
as soon as she stops producing eggs
You should wait fourteen days after intercourse to determine if you are pregnant.