Negative pregnancy test but the negative hasn't faded?

the negative line will stay there it just means if the test is left for to long sometimes a very faint line can appear in what would have been the positive line. and then people start thinking they may be Oreg when in fact they are not but left the test for to long. this happened to me a couple of times done a test was negative went back 20 Min's later and it was positive. but not a real positive of course lol. test again in a few days maybe use the first responce 6 day early test.