80%
Depends on the boxer. Mike Tyson, definitely yes.
NONE !
That would be if you get pregnant from his pre-ejaculate.
The possibility of her getting pregnant is there, but the probability is not. She would have to be in a fertile time in her cycle, there would have to be semen in the precum, etc. She will know soon if she is, in about 10 days if she does a pregnecy test.
Yes you can.
Yes it can.
YES.
Absolutely. Even one drop of pre-ejaculate contains thousands of sperm. Noticing it or not, it's possible that there was some there.
Yes you can.
No, no, no.
If you are asking if you ejaculate in her then SHE pees after that, it makes no difference. If you are asking if you ejaculate in her then YOU pee in her, it would probably decrease the chance of her getting pregnant.
A males ejaculatory fluids (Pre-ejaculate or ejaculate) must come in contact with your vagina for you to become pregnant.