phebee - sorry hun that you have to be asking these questions.
After my first m/c (missed @ 12 weeks) I got af back six weeks > the d&c.
With my 2nd m/c (missed @12 weeks) I got af back 28 days > the d&c which is how long my cycles are.
Still ttc 4 months on but good luck hun getting your bfp very soon x