Extremely painful sex like never before. What happened?

Hi all. So I’ve been having sex with my husband for nearly 4 years and I never felt this before. He’s average size not too big just perfect. Last night however I thought I was going to die. He was on top like we usually do and the first 15 seconds were good but then it felt like he was poking my cervix (I’ve felt that before w him) but then it got much much worse and terrible. I started to cry.

Once we were done (obviously I couldn’t come) the pain got much worse than when he was inside, which was weird. I tried to poo thinking that was the problem and nothing. Very sharp almost unbearable cramps on my lower abdomen, I couldn’t walk straight. I puked from the pain because it was so uncomfortable. After an hour or so I was able to fall asleep. Today my lower abdomen is still very sore, but not as bad.

I don’t have endometriosis or anything like that. We are TTC and my period is supposed to come in 7 days. What could this be?!