First Time Cumming Inside

My SO came inside me for the first time on Valentine’s Day. It was unexpected, he asked if he could and since I’m on BC I said yes. He had been fired the day before I guess had something to prove because the sex was intense and he came harder than he had in the year and a half since we’ve been together.

I’m nervous because while I’m on BC I’m not the best at taking (obviously that’s key in it being effective) and after calculating I figured out I was/am in my ovulation window (which we usually don’t have sex during but it was an exception).

Basically I just need some reassurance that it’s very unlikely I could be pregnant. It was his first time cumming inside me and life has been a rollercoaster lately so I feel like this is just something else for it to throw at me.