Weird Brown Discharge?

I’m having super weird discharge. It’s dark brown and destroying all of my underwear lol. It started last week and it’s continued until today...my period isn’t for another week. A lot of sites say that it’s my uterus cleaning itself but this has Never happened to me before! Plus it started a week after my period ended. Should I go to the doctor? am i pregnant? There’s no weird smells or any other symptoms...i just wanted to know if anyone else has experienced this!