Did he move my cervix?

TMI Time! I was having sex with my bf earlier and we were in missionary position. I often feel him”poking” my cervix when we have sex but today I felt him hitting it and it kinda hurt. Before I told him to slow down I felt him hit it and I think it made a noise. It was like a poping sound. It didn’t really hurt so I just told him to slow down until we finished. It doesn’t hurt or anything right now but I felt pressure when it happened and the sound kinda freaked me out. I’m not sure if it was something else on the bed but I was wondering if this has happened to anyone else.