How long ago did you have your baby? Your homones don't regulate for a long time after that even after your period restarts. And I mean a long time. I think you can get post pardum like 1-2 years after the baby is actually born. It takes like 3 years for you to fully bounce back physically, I think...

Is it your first baby? I think I bounced back faster after this last one (my 3rd) than the first two.