My period was supposed to start on the day before the first. I hadnt really paid too much attention to it, I just kinda kept waitin for it I guess. Today I kept thinking about it so I bought a test. When I took it The negative line showed but the line in the control was only half a line. It didnt go all the way across. I assumed it was a faulty test . I went back to it about an hour later (I know your not supposed to) and it said positive with a full line in the control window. Not just any line, both lines were blue. I thought evap lines were supposed to be brownish or grey. They were definately blue though. Im gonna go get another test tomarrow, I just thought some opinions might help.