Just did an iC think AF is a day late and line didn't come up straight away but more I stared with disappointment a v feint line seemed to appear, before I cld get to phone to take a pic the line disappeared which was prob 10 mins after taking. Sorry for TMI but I barely has enough to POAS but thought I wld as had been feeling a but sick yesterday and nipples are a bit tingly, prob all in my head but until I can do another test in the morning can anyone tell me if positive tests can disappear and if I was 14 DPO wld I get a strong positive with an afternoon test?