Implantation spotting-am I nuts?

Mo

Today is supposed to be my CD1, woke up to very small amount of light pink tint on the tp. Immediately decided it was AF and became tearful. However, as the day has gone on, it hasn’t become AF, there’s either been nothing or very light pink/light brown tint. Could it be? I think I ovulated much later than normal, so it could be implantation is only now happening?

Has anyone else experienced this?