Late late late

I am 11 days late and I have taken 8 tests. 6 were negative and 2 were invalid because the line was not appearing on the control window. The only difference I can think of is I began taking supplements for the gym (preworkout, ccla, fat burner). I have no idea if that could have an effect on my men's trail cycle but I'm pretty regular and have only ever missed one period when i got off birth control.

Has anyone experienced something like this?