Post Partum Period

Hi! I have a question regarding post partum bleeding. I bled for about 6 weeks after I had my baby (via c-section on May 14th). Then I got the Depo Shot and got my period again sometime after that for about 3 weeks. It's now going on 6 weeks since my period.
Is this normal? I've spoken to my dr and he doesn't seem concerned. 😔