Y’all are gonna think I’m stupid...and that’s fine

I’m fully anticipating to get some rude comments because apparently some of you think that it’s helpful posting a “you really need to be more educated” comment, and if that’s the case, just don’t because that’s not why people were given the chance to ask questions on this app. I’m asking a genuine question, so please answer helpfully.

About a week and a half ago, me and my boyfriend grinded. He was on top. I didn’t want to at all but it kinda just happened. I tried to stop it because I always get super paranoid afterwards, but he thought that every time I tried to get out from under him, I was playing around. Yes, that is a whole separate issue that I’m going to handle. Anyway, I was wearing underwear and he was wearing these sport-like shorts. It was my second day of ovulation (I think according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>, there’s like a 15% chance of pregnancy on the second day). He promised that he didn’t cum, and it seems probable that he didn’t because I didn’t feel anything wet. If he did cum, would I feel it at all? If he did is it likely that I’d get pregnant? I’m supposed to start today and I haven’t yet...

I’m feeling a little scared and also sad because at the beginning of our relationship, he said he’d never force anything on me and now things have sort of changed. I’m really trying to be responsible so please don’t interpret this as a stupid 20 year old being careless. Only helpful comments PLEASE