Help!!!

Chelsea • Married in May 2011. I have two babies, both born on Valentine's Day 2012 and 2016. 💜💚
Hi, second time mom, first time with a girl! My doc told me that my bent girl may have a "period" of sorts shortly after being born. She is now two months and has some pink discharge in her diaper. It came out of nowhere. Is it normal after two months if she is still bleeding?