Morning everyone!
Sammy Happy birthday. Wishing you the best of luck today x x x
Kir Darling OPKs sound so lovely. If only we all got darling OPK lines at the right time, we'd know what we were doing! Sorry for the BFN 
Magpie I'm having the opposite luck to you... I POAS (another CB smiley) yesterday and because of my peak on Tuesday, it reset itself so I got a blank circle again and then did another this morning and it went straight back to peak! So I have no idea what's going on... unless my surge has lasted 3+ days!
Just keep shagging, shagging...
Nervous As I understand it, the most tests don't advise using FMU as a surge generally happens in the afternoon, so they would miss it if you tested in the morning. This doesn't apply to the CB smiley digi ones, as they test for TWO things; an oestrogen surge and the LH surge. They say to use FMU until the oestrogen surge is detected and then, once it is, they give you a flashing smiley face. After that, you can test at any time in the day in order to catch the LH surge and get the 'peak' static smiley. It's so confusing isn't it?! I've had a peak smiley on Tuesday and a peak this morning, so I really have no idea what's going on! I shouldn't really have carried on testing after Tuesday's result, but I can't resist POAS! x x