No, your cervix is closed off and any subsequent sperm cannot reach your unborn child in any way. However, if the sperm is carrying an STD/STI then yes, it can be harmful to both the mother and child because it can infect both of you (mother first, then baby) however, if you and your partner are healthy and faithful you will have nothing to worry about. Just take it easy and don't get too rough or overdo it.
This will not create any problem to your pregnancy. The cervix of the uterus is closed by mucus plug.
Yes, the sperm waits inside for the egg to come.
Yes, it is not as common to get pregnant while on your period, but you still can get pregnant. Sperm can live inside a women for a few days and it is definitely possible.
There is little risk of the sperm on you making her pregnant as it does not take long for sperm to die out in the open, (a few seconds). however the stuff that is hiding inside your urethra is another story. While the risk is a lot smaller it does exist.
yes if it is on the outside and you wont if it is on the inside
depends on how your body takes it and if your body is healthy while the inside
Yes you can get pregnant while on your period -
Yes.
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.
Yes, that is exactly how you become pregnant; during sexual intercourse, if your partner ejaculates while inside you (not the butt). In addition, you'd have to be ovulating or close to ovulating for conception to occur.
Yes.
No. The blood washes the sperm out. Only animals get pregnant when they bleed.
If any sperm are anywhere near the vagina, you can get pregnant. I have a 30 year old to prove it (no penetration).