Have you continued taking the Depo Provera shot? You take a shot every three months and by the third shot your period should have stopped.

I would not personally recommend the shot. Check out something called "Her Option" online and see what you learn. Just google it. There are doctors and specialists who use this to aid in heavy periods. Also, sometimes heavy periods can be due to durmoids/fibroid cysts which are common in women who have been pregnant (especially if you have bad abdominal pain). Just a thought!