There is always a chance because Birth Control pills are only like 97-98% effective, and that's if you take them everyday at around the same time and do not smoke because smoking makes them less effective.
no, not from swallowing though it is possible if it contacted anywhere "down below"
Very very small
Do you mean like wet with water? Yes, you could get a girl pregnant even if you are having sex in a swimming pool. Do you men wet with pre-ejaculate? Pre-ejaculate contains sperm, so it can make a girl pregnant, even it you didn't ejaculate yet.
not likely to be pregnant
A miscarriage should not prevent you from becoming pregnant again.
have sex when you're ovulating
Pre-Cum can get you pregnant but the chances are very minuscule if it was there for a second. It is possible but very very unlikely.
the chances are 99% percent out of 100% it is very un smart to do so with out prtection
You could be pregnant - take a test
The fertile time is the most likely time to get pregnant.
PID decreases the chances of becoming pregnant.
It depends if the boy can ejaculate and the girl has started her started periods.