I have the internet preg tests & Ovulation tests (sorry don't yet know the 'code' for them!
I found that when I was preg, they did not show a positive & the chemists ones were positive. I assumed that you had to be much further along for the hormone to be traced with the internet version?!
I have also found that the Ov test did not work. For my last cycle I tested using both the chemists' & internet tests (Yes I have spent alot of $$$!) & only the chemist one picked up the LH surge.
I'm very interested to hear whether others have had posive test results with the cheapies! Otherwise I have 100 of each test which are completely useless!