First period?

Brittney • 25 • Jack 👶🏻 10.26.19 • Charlie 👶🏻 02.06.21 •Endometriosis • T1D

So I had my baby almost 7 weeks ago and stopped my postpartum bleeding over 3 weeks okay. All day today when I go pee, there’s like small blood clots/ pieces of bloody tissue? But there is no flow of blood at all! So I thought I was getting my period except it isn’t actually starting. Has this happened to anyone else? Should I be concerned?