I had D&C May 25th, and my doctor told me I only had to wait 1 cycle before trying. I asked her again and again if she was sure it wasn't too soon, and if she was sure my lining would be built back up and strong enough and she said "YES YES YES". She said there is no reason to have to wait more than 1 cycle, unless emotionally I wasn't ready. She said if I were to miscarry again, then she'd want me to wait a couple cycles.
So, I'm on day day 5 of my first cycle, and will start TTC right away this cycle. Good luck everyone, hopefully we all have better outcomes...