an evap line only shows up after the given time limit!!!!! i got a line after the given time limit 4 tests in a row (all the same brand) i thought maybe i could be pregnant.... i rang the company and they said any line in the time limit is bfp no mater how faint but if a line apears after that its a bfn (i knew that but 4 tests in a row give me alittle hope) bt i still hold out hope for you if it came up in the time limit.... discover is quit a sensitive test.... but you never know, guess youll have to wait and see....... but no a evap line will not show up in the given time limit!