With my miscarriage, I passed large clots for 3 days, then bled like a period for another week or so.
All miscarriages are different. I have had 4 and with this last one I only bled for one day then spotted off and on for 2 weeks. With my 2nd which was the heaviest I bled real heavy for like a week and a half then spotted off and on for like 3 weeks!!! Just make sure you are not filling up a pad an hr. if that happens then you need to go to the er.
I am sorry you are going through this. You are in my prayers! HUGS