U.S. doctors online nowAsk doctors free
A 24-year-old female asked:

My ovulation monitor checks for high and peak fertility days, it has read high the past 3 days, it's day 18 of 30 day cycle how come not peak yet?

1 doctor answer1 doctor weighed in
Dr. Wayne Ingram
Specializes in Obstetrics and Gynecology
Monitor type?: If your monitor is measuring the hormone lh(luteinizing hormone) then the 'peak' has passed. If it is measuring Progesterone from the corpus luteum then it hasn't 'peaked' yet. Ovulation should have been around day 16 based on your cycle.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jun 30, 2014

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.