thanks never heard that before do just wanted to check lol xx

yes it's true, that's why you have to check it in the time stated on the instructions

Some tests take longer than the recommended time in my experience only by a few mins though and I have been pregnant with all of them, Some say that evaporation lines are only grey. My doctor said it's not possible for it to be an evaporation line after a few mins because the test would have to dry out. Hope this helps. X