Did your period change after the miscarriage? Mine happened at 12 weeks, the baby was 9 weeks. I miscarried without any medical or surgical management.
Now it is my second period after miscarriage and it is so so heavy. I'm using the xl cup and super period pants together and still have to change every 40 minutes. I don't remember anything like this ever. My first period after miscarriage was normal. Nothing unusual. I'm a bit at loss as to whether this is my new norm. 
I don't think there is anything to report to the gp yet as I don't have any cramps thank god and otherwise feel ok