It varies a bit. Should take no longer then 6 weeks. I'm so sorry for your loss.
I'm sorry for your loss. Have you had your hcg levels checked? There's really no way to know when it will happen, it all depends on how long it takes for your levels to drop, they should drop quickly after the d&c so you could expect it in about 2-4 weeks time. Its always best to wait a couple of cycles after a d&c so that your lining builds up again, best of luck.