of course. the Birth Control pill is very effective if taken correctly. there is always room for human error, so yes there is a chance of getting pregnant while being on birth control and no condom use.
50/50
the probability is very small
The only "birth control" that works 100 percent is Abstinence. But a condom will help prevent it, without a condom you have a low percent of not getting pregnant.
There is no known percentage for definate. if you use a condom then there is roughly a 5% change of getting pregnant, where as if you use no protection or contraception, the risk is considerably high. if you dont want to become pregnant you may want to consider birth control, and also without a condom you run the risk or catching an STI or STD.
If you have been on birth control for over a month then you are protected against pregnancy.
yes because the condom could break
Put a hole in condom.
Excellent.
Absolutely YES! Birth control pills only protect you from getting pregnant. Condoms, while not foolproof, will protect you from STDs.
If you take your pill everyday without missing any pills you are 99.5% protected from getting pregnant, but the pill has no protection from STI's.
There's a 25-75 chance favoring that you would not get her pregnant. You could use a condom and not get her pregnant, or you don't use a condom and you have a chance at getting her pregnant.
It is always possible when having sex - the chances of getting pregnant with the two types of BC you are using together is very, very tiny.