thanks for the reply. I am just wondering bcause I have been testing every day for a while now with absolutely no test line, and just today I noticed finally a slightly faint line, which I realize is a negative but makes me think possibly OV is approaching.The instructions on mine say to wait 5 minutes for the results. The control line will always be dark, but the test line won't. If the test lines in only faint, that is a negative result, so you aren't going to OV yet. Keep doing them daily, and when the test line gets dark, that's a positive result.