Tested at the weekend as I was 3 days late, got a very clear positive. Followed by another positive the next morning. I'd bought two packs of two so on Tuesday and Wednesday I did another test and the line was gradually getting lighter. I'm on a weekend away tomorrow so thought I'd do one more test today to see if it showed pos or neg and it's the faintest faintest shadow of a line. I'm now a week late, any idea as to what's going on?!