I've never experienced anything wrong with Blue Dyes, never had an evap on them or any other kind of line except the Control line! I took one on Monday and a very very faint positive appeared within the 2 min mark. The thing is, AF came on time (June 3rd) but was a lighter. I wasn't supposed to ovulate until the 15th, unless I ovulated early. I kept having dreams about baby bumps and positive pregnancy tests, so I decided to take a test on Monday (june 16th) and there was a very faint but noticeable line! I dont know if it's a faulty test or if it could actually be positive...Do you trust them?