Chances of pregnancy

Okay so I'm on the pill and I take it everyday and pretty much at the same time maybe 30mins late or 30mins early of exactly on time, my boyfriend and I use condoms and he's never came inside me before we always stop when he feels like he's close and we have not had unprotected sex. My period should be coming this week but for some reason I'm really paranoid! There's like not chance right of pregnancy?