Postpartum bleeding

ki

I am 5 weeks postpartum and I am still bleeding. This is my second child and I did not bleed like this with my first one. The bleeding started a week after I got home from the hospital and hasn’t stopped. The bleeding will slow down for a few days then start again. Today I am having slight cramping and bleeding with one clot about the size of a quarter. Is this my period? Should I be concerned?