Crazy period after miscarriage

Heather

I miscarried at 16 weeks on July 1. My cycle returned like clockwork 28 days after. I bled more heavily than normal which I expected, but I'm still spotting brown. So I've been spotting for 9 days after my period. Did anyone else have this? I want to start trying for another baby after my next cycle, but I'm nervous that something maybe isn't healing right.