I think I may be kidding myself but what do you think of this? Its a Tesco brand and the faintest line appeared after about 10 mins but it seems to have got a little darker over the last hour. This is with fmu but I did one yesterday afternoon and the same thing happened. Today I am 10dpo. Also did a Waitrose test this morning but it's not showing anything. I know you shouldn't read the tests after the time so i think i already know my answer though...