Hi I have just started using the clear blue monitor and I am currently on my first cycle of using it. Now when I started to use this item I did realise that there was a possibility that it may not be sutiable for me. My af has been irregular and my cycle length can range between 26 days and 44 days. I am aware that the monitor is only suitable fro cycles of up to 42 days. Anyway I am currently on cd 24 and the monitor has been showing high fertility since cd 15 and I am now getting bored of it and frustrated, it becomes very tiresome doing the deed on just high days all of the time without getting a peak day, I am so eager to see that peak day and I feel that I should do no more bd until at least the peak shows if it ever does. I have now used 19 sticks and I can only test for one more day tomorrow I don,t expect to see a peak do you think this means I am in for another 40 plus cycle. Another question as well is is it possible for this monitor to miss the lh surge, I mean if I tested early in the morning could the surge come in the afternoon/evening and be gone by the time I do the next test the following morning or does it stay in the body for some time. I have bought a load of opk s to continue using after tomorrow as obviously I won,t be able to do any more tests with the monitor this cycle. I plan to use the opk s twice a day until I get my surge or failing that my af. Another question as well is why did the monitor go to a high reading on cd 15 if I have still had no peak how long after estrogen rises would the lh surge generally occur. I am getting quite desperate at the moment as I am 38 and I have been ttc for 17 months and I still don,t know what my body is or isn,t doing. A: Clear blue monitor questions I too experienced the same thing. The 1st time I used the monitor...it worked so beautifully...text book. I got high on CD 12, then peak on CD17 & 18. The next time I used it...I reached high on CD12 again, so I was happy...thinking it was going to automatically go to peak CD17...no go...never reached peak. I was also on meds & think it might ve affected it. This month... high came CD13 & Peak...CD15 & 16. The best thing to do is try it again next cycle to see if you do get a peak. I ve met a few women who ve gotten pregnant while the monitor showed high only. So...be encouraged. SSBD to ya. ;o) Read other 7 answers RELEVANCY SCORE 68.5 Q: positive digital opk two hours later negative?! help! okay ladies, I need some advice pretty please! I m either on CD 10 or CD 14, I had a withdrawal bleed after the pill, so I m not entirely sure which one i m technically on.. but anyway... I m TTC and bought a Clear Blue Digital Ovulation Test because I did my research and they seem to be the best around! I took a test around 9pm tonight and it was positive, I had a big smiley face on the screen! Then I just peed on one again, around 11pm, anticipating the smiley face and it was just a circle (clearly negative)! What does this mean? I had sex this morning, and I can do it again tonight/this morning, but I m not sure if this is just a mistake or I really did have my LH surge?! Really really trying for my first child, so please let me know if you have experienced this or have any info! Thank you! PS I m 21 and I ve never had children, so I m hoping that its easy! I have EWCM also! A: positive digital opk two hours later negative?! help! Hi there, I am also 21 and just got my bfp. Here my advice on the clear blue digital ovulation kits. They say to use in the am with first morning urine. So, if you got a smiley at 9 pm and tested again at 11 pm you more then likely didn t have a long enough hold on your urine. Try again in the morning. Good luck