Is this positive or evap line??

[switie]

I am delayed for 4 days and tried the coop acutest.. first 5 mins only has very faint line but the after that it gets darker.. would this be a positive or evap?

After the time, I wouldn't read it. It changes as the test dries which can give the evap line.
Nevertheless, if you've got a faint line regardless, this would mean you're pregnant! Xx