kind of graphic

for like two, then on for another 2. so anyway for a couple months recently I didn't have a period at all and then it came. and like before I got my iud I would have super heavy periods. so when my period came this last time, it's jelly like (sry, gross). but it's really thick and really dark and idk like is this normal? like when I wipe it's like slime but it doesn't come into my panties, just when I wipe it's super thick. anyone?