The pill and pull out

Grace

Hey so my boyfriend and I have always used condoms and I’ve been on birth control for 5 months now and I take it between the same 5 hour window everyday and I’ve never missed a pill but two days ago we had sex without a condom and he recently did cum before we did have sex but he wasn’t close to finishing and stopped midway through because he knew it was a risk. What are my chances of pregnancy?