Evap?

I’ve never gotten an evap line before and this would be my second child. Anyway, I took the test, looked at it as it was forming, saw the negative almost instantly so I set the test down to return to it once the time was up just to see if anything appeared by then. Of course I was in the middle of a two year old tantrum that I needed to defuse just as my alarm went off to indicate it was time to check the test... needless to say, I got to it a few minutes late when I saw this.

I know I need to retest and use a pink dye instead but is this what an evap line looks like?