ovulation

Thanks for your question!  The number of high fertility days can vary from woman to woman and from cycle to cycle in the same woman, and it's normal for some women to experience more than 2 high fertility days in all or some of their cycles.  

Once the digital holder detects an increase in estrogen, high fertility will be displayed.  Your holder will continue to display high fertility until a significant rise in LH is detected.  If an LH surge is detected, peak fertility will be displayed continually on the screen for 48 hours.  If an LH surge is not detected, your holder will continue to display high fertility until tests are missed for 3 consecutive days.  

Other factors which can affect your number of high fertility days include fertility treatments such as clomiphene citrate and testing twice per day.  This test is designed to be used with the first urine after your longest sleep.  If you think you have a short LH surge and want to test twice per day, you should only do so after the test has shown high fertility.  

If you have other questions, please let us know.  We're happy to help!