Hi Shelly. Sorry to hear about your mc. I would go to the dr. It could be that there is a bit of something that was missed on the ERPC that is holding up everything getting back to normal. I hope you get back to normal very soon.
I had an ERPC following a MMC, and it took over 10 weeks for my period to return. The wait was frustrating, to say the least.
I would go and see your GP and ask whether you can have a beta HCG blood test. In my case, my HCG levels were lower than most home tests would pick up (25mIU/ml), but higher than 5mIU/ml. Less than 5mIU/ml is considered 'not pregnant'. My period only returned once my levels dropped completely.
2 consecutive blood tests would see if your HCG levels have dropped completely, and if not, could confirm that they were falling.