Birth control.......

after having my baby 3 months ago, me and my hubby let my meme watch the baby and we had a night to ourselves. We got super drunk and had sex and he nutted in me. IM SO STUPID AND SO SCARED. I know I’m not ready for another and I haven’t had sex with him since which was Saturday. Why do I have to be so dumb?!!! I’m on the pill, do you think I’m overall safe? I mean I know it’s not a 100% type of thing and I know testing in time will tell.. but I just need my mind eased. We got into an argument because he knew better but then again he was so drunk.