Seems like every other period (or maybe every period) I discharge red.... chunks. I have been researching for a while now and everything points to "shedding of the uterine lining" but I can't wrap my head around it. Especially considering it somehow gets through my tampons sometimes. Probably TMI but today I reach for the tampon string and grab hold of the biggest chunk yet. A good inch or inch and a half. It does not seem like coagulated blood..... but it must be??? Does anyone else experience this? Is it just coagulated blood? Uterus?