Implantation bleeding??

Soo i went to the bathroom at work today and when i wiped i saw a mix of discharge and what looked like spotting. Now, im not due for AF until friday. I dont want to get my hopes up and be let down again but this has me thinking. Ive had virtually no cramping, light nausea throughout different times of the day, ive been extremely tired and my boobs are KILLING me. Is it possible that im finally pregnant? Im worried even just typing this cuz i dont want to jinx myself! But man. I cant get it out of my head!