Ovulation post miscarriage question

I lost our little girl around 10 weeks and had to have had a D&C almost 7 weeks ago.  I still have not had AF - but started checking for ovulation after a month. I believe I ovulated last weekend around 3/19-3/20 - does this mean AF should show up around 2 weeks later? (A week from now?) - I'm anxious to get my cycle back as each day I wait just feels like a reminder of what's happened.  
We also decided to try again- so I suppose there's a tiny chance I could be pregnant - but it's too early to test.  I guess I wait another week?
Just driving myself crazy on when to expect AF and when to call the doctor again as it feels like an eternity.
So sorry for all of your losses and thank you for any help or advice!