Implantation?

So last night I got this strange light pink spotting, with a tiny tiny streak of blood. I'm 3 days late, test is negative. Could this be implantation? I never had spotting like this before my period. Usually the day my period is suppose to come I get the brownish spotting then it turns to af after a day or two. But this was so pink so strange. This morning their is no more spotting, nothing.