i dont know if this is the right place to post this but, my girlfriend is a week late on her period. we always have protected sex but the other day i didnt have a rubber so we just did it anyway and i pulled out (which i know is stupid) but she usually starts around the first or second of the month, which would make her ovulation around the 14th or 15th (i think), we had sex on the 21st, is it possible to get pregnant this late after ovulation?..thanks