Hello girls, it's been almost 7 weeks since childbirth, today there we…

Hello girls, it's been almost 7 weeks since childbirth, today there were very brown discharge, straight like black blood, before that just smeared, I had an ultrasound a few days ago they said everything is clean, only varicose veins and fluid slightly but all within the norm, can you tell me have you had such discharge or periods, I don't even know how to call them, straight up very black smell and so on, no