Is it possible for my girlfriend to get pregnant if we don't use a condom and she is on the pill?

yes it is possible but unlikely if she is taking it correctly. i was on the pill for 6 years and never even had a close call. if you dont use a condom then you are more at risk from stds but if you are in a faithful relationship you have nothing to worry about

Yes it's still possible, my brother got his wife pregnant while she was on the pill...you need to make sure your gf takes the pill at the EXACT same time every day, or your chances of pregnancy will be higher. My sister-in-law only missed one pill by an hour and got pregnant.

yes she can. if she is not taking the pill at the same time everyday then she can get pregnant

My sister took her pill faithfully and got her 3rd baby that way!

BC is only 97 % effective I think

There is still a chance, but its extremely rare.

yes although it is a small small chance . it does happen