VERY TMI PIC!!! WHAT IS THIS?? I'm on day 3 om my period which is always heavy on day 3 and I just wiped and this was on the toilet paper!?

I'm om day 3 of my period and this was just on the toilet paper when I wiped. I was having cramps beforehand. And ever since this came out I'm not cramping. Is this normal? Anyone else have something like this come out of them? I washed it off and took a picture of both sides of it