Thats it really, i am bang on 4 weeks (AF usually comes at 3+6) Dont feel any AF twinges at all, got EWCM.
Gave in at lunch and went to Boots who only had their own digi tests, fair enough.
It comes up 'not pregnant'
but when i took the holder off to chuck it away, it shows you the test control line etc. There is a control line then a faint line next to it 
Dont have time to go and get another as am back at work and its killing me!!
So am i upduffed then?