Independent Fertility Nurse Kate Davies explains the OvuSense fertility and ovulation monitor.

OvuSense was developed to provide the same benefit as LH tests by predicting the onset of ovulation up to one day in advance in real time in each cycle. However, unlike OPKs, OvuSense provides a clinically accurate detection of the exact date of ovulation, and can help you to diagnose any ovulatory conditions by showing you an extremely accurate picture of your progesterone levels throughout the cycle.

As OvuSense takes temperature measurements in the vagina, it is not prone to the external influences which make traditional oral or skin measurement unreliable. Taking readings every five minutes each night means that OvuSense can create an extremely accurate set of values over a short period of time. By averaging out this data, OvuSense can 'look up' the temperature curve as soon as it finds the lowest point, and by reference to the extensive trial and field database assembled on OvuSense, the date of ovulation can be known in advance in real time.


Clinically proven: OvuSense is the most advanced cycle monitoring system you can buy - clinically proven in over 50,000 cycles of use.

Real time 2 4 hour advance ovulation prediction: Unlike any other monitor, OvuSense provides a day's advance notice of when you are going to ovulate in real time along with your 4 day ovulation window - proven in clinical analysis to be correct 96% of the time.

8 day fertile window:" In addition, at the start of each cycle OvuSense provides a full 8 day fertile window - these features help you take back control of your planning for pregnancy.

Fully certified: OvuSense is a fully regulated medical device and complies with all the necessary certifications for the countries in which it is available - CE mark in Europe, FDA 510(k) in USA, CMDCAS in Canada, TGA in Australia.

'Core temperature' technology:" The rest of this page explains the clinical case for OvuSense's 99% accurate patented technology, and why other products produce an incorrect result in at least one in every five cycles.