I think you got a bunch of bull today. When I had mine taken out, the dr took it out with a pair of hemestats. It folds up on its on when pulled out. You pulled it out the same way the dr would have done.
Secondly, the hormone is the IUD. It comes in a pair, it is the reason you choose a 5 year IUD instead of a 7 year IUD. That is one of the stupidest things I have heard! It would be like saying it is not the car's fought, it is the gas's fought!
I wonder if your IUD was a little inbedded in your uterus and that is where your bleeding is coming from. If you had a cervical laceration from pulling it out, between 2 drs they should have seen it.
If you had to have a D&C you could talk to the anesthesia dept, they could give you conscious sedation which would allow you to continue to breastfeed. The meds are not harmful. I don't know how a D&C would help though. It may just take time to heal on its own. Hopefully tomorrow you will only have a brown discharge (old blood), keep everyone out of there! The more they probe the more irritated it will be, and take away the clotting your body is trying to do on its own. Hope this helps some. Good luck! Keep us posted!