I’m nervous

On Friday I had sex with my boyfriend, we used a condom and he pulled out before he was close to finishing. We even checked the condom for holes after (which there were none) I take the pill everyday but I’m on amoxicillin at the moment and not sure if it lowers the effectiveness of the pill. I know I can’t get pregnant if he didn’t finish in me but I’m still nervous. I just

need some reassurance that I’m okay