Help!?

Can someone help me out I know this isn't a TTC post but idk where to post this,

I am currently on the pill and have been for 2 years (changed it a few times between but not recently), I haven't missed any in the last 4 months and 2 days ago I was in the shower and decided to check my cervix and it is soft and open! Like I could put my finger in there, does this mean I'm ovulating?! I had sex just before that shower and my partner ejaculated in me and now I'm stressing that I'll end up pregnant, I'm so confused as I thought you couldn't ovulate on the pill? I've been checking my cervix for months now and it's never been like this!?