I am a TRUE pee on a stick addict and have what they call "lines for eyes." I see lines where an ordinary human could not Here's the deal..it really depends upon the test. What HPT are you using? Some are known for evaps and some are known for very early shadowy lines that turn into positives. I have had many pregnancies start off with very, very faint lines that I could only see if I stood on one leg, squinted my eyes and held the stick up to the light. LOL I have also had for lack of a better word..evaps...lines when not pregnant or disappearing lines. In reality...they have been malfunctioning tests. IMHO..if the tests are getting darker and more than one is showing a line...more likely than not..it is the real thing although some tests are so horrible that yes..you could get several evaps on multiple tests. GL and let us know which test you are using.