Clearblue Advance Ovulation tester and the Clearblue Ovulation monitor, with different results.

Thanks for choosing Clearblue, Courtni.  The Clearblue Fertility Monitor works different than our ovulation tests, so it's possible you may receive different results.  

Clearblue Advanced Digital Ovulation Tests track the changes in estrogen and LH throughout your menstrual cycle.  If the necessary changes in estrogen are detected, the holder will show High Fertility, and if an LH surge is detected, the holder will show Peak Fertility constantly for 48 hours.  Hormone levels vary from woman to woman, and if your estrogen level isn't high enough for the test to detect, it's possible for the test to change from Low Fertility to Peak Fertility without displaying High Fertility.  This can also happen if your hormone changes occur on the same day, or if a test is inadvertently missed.

The Clearblue Fertility Monitor compares each test stick to the next to establish your result and must detect a significant rise in estrogen in order to see Peak Fertility.  The monitor stores information about your results, so it learns about your fertility pattern.  We don't recommend reading your results from the test stick for either device.  Your result can only be read on the display and cannot be determine from any lines you may see on the test stick.

We'd love to chat with you so we can learn more and talk through your questions.  Please give us a call at 1-800-321-3279 and mention reference #FB785.  We're here Monday through Friday from 8:30am-5:00pm ET and would be happy to help.  Thanks!

I am using Clearblue Fertility Monitor for the first time this cycle and it is now Cycle day 17 (or 16 according to monitor) with low fertility. I also have the Clearblue Advanced Digital Connected which I have used since previous cycle. For the current cycle, it has shown me High fertility since Day 15. I am confused about the results. Which one is more accurate? I use the dipping method. Thank you.

Hi April,

If you have had your IUD recently removed we would recommend to wait at least 2 natural periods to occur before using the test so that you can calculate the length of your cycle. However, it is up to you if you wish to start testing sooner, we will not be able to recommend what day to start testing on, but you will need to count the first day of your full flow period as cycle day one (17th Jan). 

In regards to your previous cycle, once Peak Fertility is seen you should stop testing for that given cycle, as there is no need to continue testing. 

If you have two Holders you may use either one in your next cycle, provided you use the same Holder consistently throughout one cycle so that it may track your hormone changes. Both Holders would have reset, as the Holder will automatically reset after 3 or more days of not being used.

Sally-

Thanks for the reply.  I just didn't know I screwed up my readings for future use by continuing this week for four days and having High Fertility readings.  Glad to hear I didn't.  Does it get accustomed to me by using it prior and not new...as in adjust to how my first month went to find high fertility and peak this month?  Thanks again.

Hi April,

As the Holder resets after each cycle (if no test is performed for 3 or more days) it loses the information from the previous cycle and starts storing your hormone levels from scratch in the next cycle, therefore a previous cycle won't affect the next cycle.