How long after miscarriage until your period returned?

Ja
I was 12 weeks when I miscarried, but my baby was only measuring 11 weeks. I had to have a D&C on 6/8 and bled from that for about a week. Now 5 days later I'm bleeding again and I don't know if it is my period or not. The doctor told me it would probably be 4-6 weeks after the procedure that my cycle would return...