Pregnow Test question

[Mumintaz]

Could you ladies who have used these tests answer a question for me.

What does it mean if you definitely see a really really really faint line, but visible at arms' length in all lighting within the proper timeframe but which fades to nothing when the test dries?

I don't for one minute believe that I am pg, but I am curious as to whether this happens often because normally I don't even see the faintest line on those tests until around 17dpo and I was only 7dpo when I decided to PIAC.

I just caved and PIAC again and now that this test has dried...I can still see "something" there. Not sure if it has colour or what but are these tests prone to evap lines or evap indentations etc?

Lisa
PS...and edited to add. The test has completely dried now. There is still "something" there. It isn't completely obvious but when I pick up a handful of stark white BFN's, I can still pick it out easily. What do you think it could be?