The OvaCue offers a higher degree of accuracy in predicting ovulation when compared to urine-based fertility monitors, while also providing the convenience of saliva and cervical mucus-based testing. Urine-based fertility monitors base their prediction on the presence of a specific level of an estrogen metabolite in urine. OvaCue bases its prediction on changes in saliva produced by the hormone interaction that triggers this rise in estrogen. The OvaCue does not require that the hormone reach a specific predetermined threshold, but rather it reports the individualized hormone pattern.
The confirmation signal in urine-based fertility monitors is the presence of luteinizing hormone (LH) in the urine. Sometimes this signal is seen on the day of ovulation and sometimes on the day after ovulation. (Note that one can not achieve pregnancy after ovulation has already occurred.) The OvaCue signal is based on the shift from estrogen dominance to progesterone dominance, which produces changes in the electrolyte characteristics of the vaginal mucus. The lowest OvaCue vaginal reading occurs on the day before the shift; a marked rise in OvaCue vaginal reading usually occurs on the day of ovulation, followed by continued elevated vaginal readings. An additional advantage of the OvaCue is that there are no recurring costs for test sticks.
For additional information, visit the comparison chart on our fertility monitors comparison page.