Period flow/length change after MC

RR • Together since 2009 | Married since 2014 | 3 M/C`s | MTHFR | Rainbow baby born 07/02/17💗 #2 Due 12/21/20!!
I began having a MC November 21st. Had my first AF December 17th but the spotting hadn't stopped between the MC and first AF. So now January 15th I got what I'm counting as my first real AF after the MC. But it's different now. It was heavy for 2 1/2 days and last night and today it's been so light I'm only using a panty liner. 
Is this common after a MC? Anyone else notice changes in their AF after a MC?