Birth Control Questions

Hi i’m 20 years old. Ive been on the pill for about 5 months now and my bf wants to cum in me. We’ve been together for 3 years. I’m a little skeptical about the whole thing, because this would be the first time for both of us doing that. I know the chances of pregnancy are low and a little bit higher depending on times you take it the pill, but If you were in my position what would you do?