Unknown period

Kimberly • *mother of 2* & *proud marine wife*
I have recently started my period but my cramps are more painful than usual i recently had the depo shot in october but last night when i went to the restroom right before i flushed i saw this big white chunk of flesh i belive with small spots of blood and have no idea what could it. I have not seen something like that does anyone know what could it be?