Hi, sorry didn't check forum yesterday as v busy with work! I did a re-test this morning and am sorry to say that it was clearly negative- I bought one with the pink dye that uses a single or double line, rather than the + sign. I am really disappointed as I have loads of symptoms and really thought I was pregnant!! My cycle is not always exactly 28 days (last month's was 35) so I don't know whether this could have affected it. But then I don't know why the Clearblue would have been a faint positive as it would have been too early to tell.