13 weeks post D&C and still no period 😢

I had a missed miscarriage back in late October and a D&C on Nov. 4. I have had a positive OPK in Dec and Jan, but I'm still getting BFN's. I'm not sure what to do. Praying it isn't scar tissue that's prohibiting my cycle from returning back to normal. Anyone else go through this? Anyone diagnosed with Asherman's Syndrome after D&C?