Light brown discharge? No TMI pic

Kristin • Momma & Wife
I'm supposed to be starting AF Saturday and am normally not early. If anything I'm always a couple days late. I was having some cramping and pressure and went to the bathroom to see what was going on and had some light brown discharge. Sry I know this is gross, but normally when AF is starting in I have stringy dark discharge. Anyone experienced this? It must just be AF popping up in guessing...