Retained placenta 3 months postpartum?

Monica

Hi ladies I know this may be sound crazy but is it possible for pieces of placenta to come out 3 months postpartum? I just got my first period today and it’s been heavy. And when I went to the restroom something big came out but it wasnt like a blood clot it was like a white thing that couldn’t easily tear (sorry for the TMI). I’m just a little worried because blood clots I do get but not that. Any suggestions as what it could be ?