Eeekk help!!

Ive just noticed a lil bit of orangy pinkyness when i went to toilet. Af is only 2 days away. Is this too late for implantation bleeding? Or is af early? Other then feeling really tired i dont have any other symptoms. I normally get cramps before af,3 days before but nothing as of yet. Really dont want to get my hopes up, but i am chomping at the bit to poas right now!!! Any advice?