Hi Emum,

I know when I used OPK's that it was best to NOT use first morning urine as the LH hormone which the OPK picks up will mainly be detectable in the afternoon. I used to try to to the test at the same time every day (between 12noon and 3pm). That was most important as well. Also, try to not drink to much before taking the test as this dilutes the results too. Maybe the negative result you got was because of this. I didn't use the brands which you have, I had the Clearblue Digital that showed a smiley face when detecting the surge, and then some tests that I purchased off Ebay, and they worked as well. Hope some of these pointers help, but just seemed to have jabbered on . Good luck with your TTC!!

xxx Nita