Me and my girlfriend have been having unprotected sex for 2 years, in that time she has fell pregnant once last year, but lost it. I have been paranoid that during the 2 years she has only become pregnant once and have thought that she may of slept with someone that time to get pregnant. Could it be possible of having sex so much without getting pregnant, or could I be correct in having my suspicions?
I assume you have discussed having chidlren and can provide for children and have somewhere both to live?
And that you both love and trust each other? Doesn't sound like it. Try using protection until you have found the right person to be with before bringing children into the world.