Advice?

Okay so I posted this in the general pregnancy group as well so delete if not allowed… but I took a pregnancy test this morning, and it’s a very faint positive. I didn’t like how faint it was and I know how blue dye tests can be, so I went and bought one of the cheap Walmart tests with red dye.

I took the test, given it was middle of day and not fmu, but there was a clear line with color for about 10-15 seconds, then completely disappeared.

I tried shining different lights on it and different angles to see if it was an evap line or if there was ANYTHING but there’s not a hint of any sort of line.

What does this mean? Is there still a possibility I could be pregnant?