So I have been using the ClearBlue Advanced Digital ovulation test since cd8. I never got a low reading, always high (flashing smiley face) until I tested today at 3pm and got a Peak Fertility result (solid smiley face). I have also been using ClearBlue Easy Digital OPK as a backup, the one that shows just 2 days of peak fertility results and it has been negative, no surge detected, even today using the same urine sample. As a backup to the backup, I have been using First Response pink dye ovulation tests and they have been negative, no surge detected. I think the issue may be the test holder because although it says the test holder is good for two months and comes with 20 test sticks, enough for two months, I think the holder loses accuracy if you use it for more than one cycle. Should I ignore the result and go by the backups? Should I start using a new holder today? I think it's inaccurate due to the fact that as soon as I started testing on cd8 it gave me a high fertility reading. My temp hasn't dropped. The ClearBlue Advanced Digital ovulation test is supposed to give you at least 4 days of most fertile time. I usually get 3 to 4 days of High reading before hitting peak results and backing that up with other tests. Any suggestions? I don't wanna drive myself crazy.