How can you tell when your miscarriage is over?

I had three D&C's as well and then miscarried naturally. I was surprised that the doctor didn't want to make sure my uterus was empty, but I was never required to go back after he told me I was miscarrying. I would just wait and see if you get a normal period next month. If you do, then all is fine. If not, then your body still thinks it's pregnant and you will need to see a doctor.