since u said u are sceard then don',t. my advise wait as long as u want ,don't let him pressure u. remember it is ur body.once u have done it, u cant take it back, u only have regreats ,and sex is not a test 4 ur love. But when u are ready make sure he wears a condom, cos u dont know where he might have been. STDs& AIDS are real.
Either one of them can determine the end of a relationship, depending on how they feel . But in reality i think it should be the woman ,after all she is the one who keeps the relationship going after the man has initiated it.