Evaps and indents (pics)

tenille
Just a quick one (sort of) 
​All photos are taken within 4 minutes.  
​I can see a faint line but it looks like indentation? It can't be an evap as the test was wet and within the time frame.. Or can it? I know the line is so so so faint I have compared with a clear negative and I can see the difference. Any advice is welcome.  
Okay I just looked again at how faint it is and feel a little silly. 
​Some insight on evaps would help
​GL and baby dust
​Ps: I tested too early