anybody else this careful with sex?

Me and my boyfriend come from religious families. So getting pregnant would not go over well. We've been together eight months and agreeded to have sex about a month ago. 
We use condoms and still we both agreed he needs to pull up with a condom
Very rarely we don't use a condom. If so, I get him to pre, clean off, then we have sex and he pulls out. 
 We're extremely casious but yet I still fear each time waiting for my period. Anyone else this safe or worried. Also would there ever still be a chance or getting pregnant?