First please remember that churches here on earth are made of of men not god!! The religious books we have here were written by men not god, many talk about them being god-breathed but some religious works were also man breathed & man directed. By this I mean that in any era & any country there are political & personal reasons why people (both knowingly & unknowingly) translate words in such a way as to alter their original meaning.
Your god has a direct line from him to you, you don't have to take what the church says - you should listen to what god tells you - what you know direct from god.
God forgives us our sins, all of them, all we have to do is ask. God also allows us to do things that are normally wrong at times (i can't think but who was it whose wife could not have a child so he laid with the serving girl & then his wife also conceived?)
if you & your girlfriend make love (not just have sex!) god is going to see that as a joyous event, so long as you truly love each other & so long sa you realize how wonderful god is to have given us the ability to experience love & love making & so long as you do it sensibly(precautions) & not well not say behind the school toilets!!
In the future if you & she break up, that's ok - god understands, & he'll understand if it happens before of after marriage - I think god would also be happier if it happened before their are any children involved!!
