Pink Discharge worries

AF was due 9/29 and I haven't tested on advice of my acupuncturist to wait until a full week after my missed period even though my cycle is usually clockwork (26 days). I woke up this morning to a little pink discharge and it's continued through the day but hasn't gotten any heavier or redder. I'm trying to tell myself that it could be a pregnancy sign and not just the beginning of a super late AF. Any comforting thoughts?