TMI Help

So my boyfriend and I were laying in bed one morning on the weekend and we were just playing around and we started kissing and making out, we didn't have clothes on.. So when we were making out we would just tease each other so it got a bit hot (I was on top of him so I would let him slide into me then just kiss and play  which led in to other things we finally got a condom and then had sex but could this mean I could get pregnecy because he was in me without a condom on. I'm not on birth control.. No hate please I know all about STD's   But seriously.?