DOUBT SOLVING ABOUT SEX

Okay, so last night I had sex for the first time in my life, I was under alcohol effects yet I knew what I was doing and I wanted it that way, but... Well, it was great, but before sex I had given him a blowjob, and he came, he never cleaned himself and we had sex right after that, I want to know the possibilities of this leading to pregnancy, I know when my fertile window is, yet I still have the doubt.... I would be completely thankful if you could give me some advice and solve my question, it's mostly curiosity :) thanks

(Personal experiences do count as an answer)