Were you pregnant?

Bethany

Has anyone ever found out they were pregnant after a negative test? My period is currently 13 days late with no sign of AF. I tested negative when I was 2 days late then I got 2 faint positives (blue dye) when I was 8 days late. I decided to go buy a first response digital and its saying negative! Im really confused at this point. Had anyone had this happen to them and were you pregnant or not?