Scared of being pregnant.

My boyfriend and I just broke up 4 days ago. We only had sex twice this month but he came in me both times. I’m on birth control and take it perfectly but I’m just scared of getting pregnant because of the breakup and things didn’t necessarily end on the greatest terms. I’m probably overthinking as I’ve taken this breakup pretty hard but I’m just freaking myself out. My period is supposed to start in about a week and I keep thinking about what would happen if I did end up pregnant

:(