Someone please ease my mind

My ex and I were actively TTC last month but ended things SOON after. So I’m not TTC any longer. As I don’t want just anyone’s baby and a baby is not something I want to bring onto my plate right now due to my breakup. I slept with my ex (the ex before this one) a few days after my last period in January. I took Plan B the next day to be safe. We went 3 rounds that one night (haven’t had sex since) but he got off every time. Twice in a condom the third time we pulled out 😑 I’m HOPING since he got off so many times that’ll drop the sperm count by a lot, I used plan B so hopefully that took effect.. but now I’m spotting and I NEVER spot. I’ve had 0 symptoms of AF coming early. Please just tell me there’s such a slim chance that this isn’t happening rn. 😑