Issues after Miscarriage

I've had 2 really bad periods after my miscarriage in April. I usually have light periods that only last about 3 days. The first period in May lasted 6 days and I bled through numerous times and never do that. This period lasted about 7 days. I'm supposed to be ovulating Wednesday and I was spotting today. I never have spotting or bleeding unless I'm on my period. I'm starting to get concerned. This is my 2nd miscarriage in a year. I've had the auto immune and blood clot testing. All normal. Any thoughts? Obviously to see a dr but wondering if anyone else has had this happen.