Period after miscarriage

Justine
Hi all so I had my D&C 3.5 weeks ago. I was only measuring 6 weeks but should have been 9 weeks. I was bleeding/spotting for about Two weeks prior to my D&C. I spotted  only the following day but otherwise no bleeding after the D&C. I started bleeding again at 3.5weeks with clots so I am guessing this is my AF.  I just don't want to get my hopes up that it's really my AF and it turn out to be just remaining tissue. Has anyone else have their AF come back this soon?