Bleeding over 8 days?

I'm so confused. I started spotting 8 days ago and it continued switching from an array of colors (no bright red or clots).... well today i would say it's maybe a light period? Filled up maybe 1/4 of a tampon all day & a few spots on my panty liner this afternoon. It's more red-orange tint....

Why on earth would I still be bleeding? The bleeding initially started a week before my period was due.