Second Period After Miscarriage

Alexis
Question: My first period following my miscarriage was just like my regular period. My second one, however, has been really heavy. Usually my first and second day is kind of heavy and then lightens up from there. I'm on day 5 now and it's still very heavy. 
Did anyone else have similar experiences? I just want to make sure it's normal before I considering calling my dr. Definitely not used to it being this heavy! 
TIA!