Just had sex with my boyfriend and the condom broke. Luckily he realized a few seconds before he came because he pulled out but there's a possibility a little of it got inside of me. I'm due to start my period tomorrow. I'm trying to decide if it's worth it to screw up my cycle with plan b or if I should just cross my fingers on it. I'm not trying to have a baby but if I end up pregnant it won't be the end of the world.