Never ending period....20 days+

Shari
Hey ladies need some advice. I've been spotting since September 28 and continuing. A box of tampons, pads, and panty liners later this damn blood flow doesn't show sign of letting up. Took 2 home prego tests and came up negative. Went to Urgent Care Monday and blood work came back not prego so ruled out possible miscarriage. This has messed up my Glow tracking and after hours action. Can't see a doctor until Nov.3.
Any suggestions or had a very long period? Not sure what this could be.