Pin the head on the cervix??

Soooo I've been having sex with my guy on and off for a while but it's not consistent . Today, he was really aggressive and at a couple points I noticed he pushed all the way inside of me and i felt a short sharp pain that made me cringe! What happened?? Did he reach my cervix? If so isn't that dangerous like will it cause damage or is it ok for him to go all the way in and I get used to it? We don't have sex often because we're long distance so I sort of am still getting used to his size 🤔