Ahh am I going to be pregnant??

So I’m 17 and me and my bf had sex the other night and he didn’t pull out in time so he came in me. I checked my pill pack and noticed I had skipped one a week prior. We both freaked out and I ended up taking plan b just in case but we had sex on my first ovulation day. Basicly I’m still freaking out even more than before because I absolutely can not get pregnant. Does me missing/ skipping the week one pill have a huge effect on the possibility of me getting pregnant???