6 days late with negative test

I have never been more than a day late, so here I am 6 days late and took a test. It says NOT PREGNANT. My cycles are very regular and I’m not crazy heavy, but need super flow tampons for at least a couple days of it. Now, I did have some very light spotting a couple days, but very clearly this is not a normal period for me. Is this something that I should just wait another few days and see what happens, or should I call my Doctor?