Help a girl a out

Helllo all, I wanted to reach out to the community first to see if anyone else might know what’s going on before I go to the doctors for exams and a bunch of test…

From my period in November to today I’ve been having off and on brown sticky discharge. After the first week I took a pregnancy test just to ease my mind a bit and it was negative and I know it can be normal discharge as it’s just old blood or my body cleaning itself but it’s been consistent the last week and half. Sometimes it’s a decent amount of discharge and sometimes it’s lil specks. I am supposed to start my period tomorrow (December 7th) and still having that’s weird dark brown discharge today.

Any ideas? Am I jsut to stressed right now to even have a balanced body? Is it normal to have this type of discharge this long?