Here is where I ordered pregnancy tests & ovulation tests:
click here
I drove myself mad every month trying not to test, and then when I inevitably gave in and tested with a clear blue or other expensive test I would feel so gutted when it was negative as it then seemed such a waste. And as usually this was early, it didn't help really as then it would be back to square one. At least with these you can afford to use plenty and it makes the 2WW a little more interesting.
Good Luck with your Clear Blues.