Confused

Sometimes when my husband and I have sex I have incredible pain after for days at a time. We usually don't have rough sex. We had semi-rough sex 3 days ago and it hurt so bad I wanted to cry. (We've done it harder than that before and I was completely fine.) I've been hurting since. A little while ago we had super gentle sex and the pain is worse now than before.

I know I need to see a doctor and I'm going to.

Just wondering if anyone has experienced it.