i took a pregnancy test this morning and it came back with a very very faint positive line but i was the only one who could see it. I left it for about 30 mins and looked again, i could see again a faint line but it was more visible. After some research I really don't know if it is a evaporated line or not. I did take 3 strip tests which came back negative. If anyone has any advice that would be great!