13 weeks later and still no real period...

PumpkinC
I had a D&C on Nov 27 for a missed miscarriage.  Over 13 weeks later and still no normal period.  I did have a little bit of abnormally light bleeding 6 weeks after the surgery.  I counted that as a period, but not sure it should really count.  Now 53 days into the current cycle and my doc has given me Aygestin (norethindrone) to try to force a period.
I'm scared of Asherman Syndrome (scar tissue from the D&C) which is apparently way more common than I realized.
Scared.  Frustrated.  Depressed.
Can anyone relate?