need help 👁️’s!

I took this Walmart cheapie on 11/28 (day of my expected period) saw something then i took the target blue dye cheapie on 11/30 (which would be a day or two late for AF) and a line as well .. I then took this CB test yesterday (12/5) and nothing came up at all *it wasn’t FMU & pretty sure my pee was diluted, but shouldn’t it still have been + for how late AF is or does diluted pee no matter how far along you are makes a test negative??

Vote below to see results!