I'm sorry for your loss. I had a D&C last year and I bled for a long time but come to find out it's b/c of a blood clotting disorder I have which is probably what has caused all of my miscarriages. Anyway, I bled after my D&C for like 7 weeks. I stopped bleeding for about a week and then had a period. It was pretty light since I had been bleeding for so long and there was only a short time between them. The next period I had wasn't "on time" by my standards. I'm a 28 day cycle gal and my period came like 40 days later and it was pretty normal as far as cramps go. After that, though, it was all business as usual. I hope this helps.
Mine have always been normal after the 7 m/c's that I have gone through. No excessive bleeding but sometimes will have cramps which I normally don't and will have more clotting. My dr always recommended not using tampons for the first few periods after a m/c. I hate pads.