Lost our first baby.

3 days ago I went to the dr for a normal pregnancy checkup. The nurse couldn’t find the heartbeat on the doppler so she ordered an ultrasound. Thats when we were told that our baby was only measuring 9 weeks when I was suppose to be 11. My dr then came in to officially tell us the bad news and go over our options to remove the pregnancy. We decided on naturally letting my body pass it. He told me about all the blood and the emotional pain but nobody told me about the physical pain. Tonight I started to pass the baby and my body feels like it’s about to break. I don’t know what to do.