Question?

Heather • Wife 3/28/15. Mother of 4 furbabies. TTC #1
My original AF was 6/6 and new one changed by glow is 6/9, but I'm so anxious to test. If I test tonight or tomorrow is there any chance of something showing with a first response? I've used cheap tests and have all been negative so far, but not sure if I'm doing them right.