Possible pregnancy?

My boyfriend and I had sex the night before with a condom. However when he pulled out, the condom (as a whole) stayed inside of me. The rim of the condom was still outside of me so it wasn’t all completely inside if that makes sense. However we felt some sort of substance near my area that we’re not so sure if it was semen (or possibly ovulation?) or not. The condom didn’t break so there’s no risk in that. I took plan B about 20 minutes right after it happened however I am currently ovulating. Is there a chance for pregnancy? We’re not sure if any semen got in me at all, but given that I’m ovulating and the time I took the plan b, if any did would there still be a chance?

Thanks