Period after MC

Hi,

I had a miscarriage in December and ever since my periods have been so wonky. My periods will be heavy for 2 days and then completely stop and then have spotting a few days later. You guys think I should go see a doctor? Or do you think this is completely normal and that it will resolve overtime? We still have not gotten pregnant since our miscarriage and I'm worried that this is the reason why. Would love some insight if anybody has any!