Evaporation line or faint positive

[Capri31]

Hi there, I did a test very early this morning and actually fell back to sleep thinking it was a negative, however on closer inspection when I woke up and looked at it again I saw a very faint vertical line.

In people’s experience does this look like an evaporation line or a faint positive?

Evap line but do another in a couple of days just to be sure.

Looks like an evap, I found the blue dye tests were terrible for them - try again in a day or two x