My girlfriend has been on birth control pills for 7 months now. we always use a condom but last night it broke and i pulled out. should i be worried?

Can she be pregnant?: If she is on bc and does not miss any doses and it is all working then it is very unlikely that your accident last night will make her pregnant.

Pregnancy: Both means of contraception (ocp and condoms) have a very low failure rate, but do have a failure rate! if concerned, your girlfriend needs to see her doctor for pregnancy testing.