chances of pregnancy?

Hey ladies, so my fiancé and I had sex about a week ago I guess and after we finished realized that the condom had come off inside me. I immediately started to get the condom out and he immediately went for a plan b. The condom was successfully removed and I took the pill less than an hour after the whole thing happened. I also took a shower, I do not douche, and cleaned myself throughly.  I believe the condom came off as he was pulling out. We have not had sex since. I was supposedly in my fertile window so I know of course there's always a chance of pregnancy. But since I took the plan b and removed the condom in less than an hour after it happened what do you ladies think?