I am a bit confused about the EVAP? alot of people on talk about it and only faint lines, I didn't realised it was so complicated!
xx
An Evap is merely the line where the test line should be if it were positive, but after the test has dried, there is a white or grey-ish shadow there, as that area consists of different substances and compounds.
Remember when you were a kid and you used to draw with special crayons on paper and then water-paint over the top....and the paint reacted differently in the area the crayon was.....same theory! Only the 'paint' is your wee, and the crayon is the test line!
Basically, if there's colour....it has sensed HCG, the pg hormonse, if its a shadow without colour, its an Evap.
Sadly so many more pregnancies than we ever realise actually get off the ground, and don't implant or survive in the very early days, and these can give a tiny tiny hint of a pink line for a couple of days, if the body has started to produce HCG....and that accounts for the odd faint pink line that people have and disappears.
The higher the sensitivity of the test....supposedly the more prone it is to Evaps. Like-wise the higher the sensitivity, the more chance of a test picking up the tiny amount of HCG that may come from an early days failed pregnancy.
The best way to avoid it, theoretically, is wait and do a regular test, a day or so after you are late......but then as you point out....we are all obsessives and the liklihood of that is fairly negligable!
Me, I'm a POASaholic!