scared...

I take microgestin 1/20 FE birth control and I take it at 2:00 everyday but today I took it around 1:15 because I knew I'd be busy at my normal time and today me and my boyfriend has unprotected sex but he didn't ejaculate inside of me or didn't come close to it at all, but him and I are a little nervous about the fact that you can get pregnant off of precum...