Tmi but need helpp please

This never has happened to mee. I been spotting light pink cm all day when i whipe and no its not my period i can tell when its my period.. i dont have cramps but have pain that comes and goes im 5 days late could this be implantaion bleeding?? I tested 4 days ago it was a bfn im waiting a couple of more ddays to pass by to take another test