Period late!

My period has been late for two days which has never happend. However a few minutes ago I wiped myself and I got a light pink blood stain. I normally have a lot of cramping before my period, which never happend. Can this be the start of my period or implantation? Im still not having any cramps or anything I just feel a little nauseous thats all. My SO said to wait a week to test :(