PLEASE HELP. Ok so the last period I had started December 18th and ended on December 24th. I'm not…

PLEASE HELP. Ok so the last period I had started December 18th and ended on December 24th. I'm not supposed to start until January 14th. I've had some light pink and brown spotting the past two days but I only see it when I wipe. I've only seen it like 3 times in 3 days. Does anyone know what it could be?