SOS PP sex

Um, 6wks pp today. Had my checkup. Dr said everything looked good and healed. Tried to have sex with my husband. Kinda hurt. Put my finger inside. I CAN FEEL MY CERVIX. I'm freaking out. It's like a finger length in, I have NEVER felt it before. There's no way I can have sex. I'm so worried. Why didn't my doctor say anything? Will this resolve itself? I'm upset and worried I'll never be able to have sex with my husband again. Please tell me someone has experienced this and it went back to normal???

I should note that my delivery was uncomplicated, and my recovery was super easy. I had a few stiches that were gone in 2 wks, and I was done bleeding by 3. I feel great and started running at 4 wks. I feel normal, so this is very shocking.