MISSING A PILL

Terri
Hey guys! So I missed a pill a month ago. I didn't realize that you took two the next day bc I just missed the first day of the new cycle and I just took the rest of the pack as religiously as usual (I've never missed a pill up until that time). I had very brief unprotected sex the other day with my boyfriend (we're taking like 5 minutes and he didn't cum) and didn't finish because I felt paranoid. Can I get pregnant like 3 weeks after missing a pill?