Super nervous. Is there a chance I could have gotten pregnant🫣

I’m kinda nervous. Long story short I got drunk and went to my exs house. We hooked up for the past 3 days.. I’ve not gotten on my 🩸app this month yet but checked to see if my period was coming soon cause I’ve been having some cramps and realized all 3 days we had sex were “fertile days” does that mean there’s a possibility I could have gotten pregnant or not until the 6th ?😶 we had sex like 6 times total, didn’t use a condom (stupid I know) but he did pull out every time except twice said he accidentally finished a little in me then pulled out with the rest, another time finished before he could pull out. I’m really anxious now cause I’m def NOT trying to get pregnant.. no negative comments pls I already feel stupid I know. Would a plan B work or no since I’m supposedly ovulating soon ?