Light brown discharge??

Ta

Okay, so i know it's most likely just old period blood mixed with CM but i am kind of freaking out. Last time I had sex was Sept. 5th and i had my period 2 weeks later. Usually my discarge will be brown for a few days/1week max and then return to white. It's been more than 2 weeks and my next period is in 9 days and I am afraid i am pregnant after reading all these posts about how it's normal?? Help😓