A man is never too old to get a woman pregnant. Men , unlike women , are fertile from puberty until death.
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.
they have a baby to a dirty old man...
an 80 year old woman cannot become pregnant; However, an 80 year old man can impregnate a woman who has not passed menopause.
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.