it is harder for an old man to get a woman pregnant because most old men are sterile or are so old that if they have sex they could have a heart attack while doing it.
yes
they have a baby to a dirty old man...
Physically, yes. Is it advisable? No.
In order for a woman to get pregnant, she must have sperm from a man.
Exactly the same as a non-pregnant woman or a man.
Nothing. Men do not have symptoms when a woman is pregnant.
No; it would not be possible.
no
yes
when a woman is pregnant
No amount of masturbation can make a woman pregnant, she can only get pregnant if sperm fuses with an egg cell.