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100% money back guarantee

We are confident that OvuSense will confirm if and when you are ovulating. So if you use it for 90 days and ovulation is not detected, you will receive a full refund to help you seek clinical advice and treatment if needed. If you ordered a 12 Month Starter Pack, you'll also get to continue to use any outstanding subscription you originally paid for.

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How does PCOS affect fertility?

If you have PCOS (polycystic ovarian syndrome) the timing of your ovulation is likely to vary from one cycle to the next. You may also have infrequent periods, making it impossible to know exactly when ovulation occurs. If you do ovulate, it's quite commonly late in your cycle. We created OvuSense just for women like who want to know exactly what is going on and take back control of their fertility.

How can OvuSense help?

OvuSense is different from anything else you may have heard of or used previously to track your ovulation. That's because it measures core body temperature using a specially designed sensor clinically proven in 2 trials, 5 clinical publications and over 50,000 cycles use.

Measuring core temperature enables OvuSense to track daily fluctuations in your progesterone - the hormone released during the process of ovulation, that also needs to be sustained in the second half of your cycle to help you conceive. This progesterone pattern is unique to you, and OvuSense uses it to predict your ovulation up to 24 hours in advance using current cycle data, confirm the exact date of ovulation, and monitor your individual pattern from cycle to cycle - meaning it works even if you have irregular ovulation as a result of PCOS or other issues.

You can also use OvuSense to track if fertility medications, supplements and lifestyle changes are helping with your ovulation timing and bringing your cycles under greater control.

What's the difference between OvuSense and other devices?

OvuSense works by using a vaginal sensor (the size of a tampon) to take your core body temperature every five minutes while you sleep, to build up a complete and accurate pattern of your fertility. In the morning, you simply download your data to your smartphone via the dedicated OvuSense app.

Ovulation tracking methods such as fertility apps, Basal Body Temperature (BBT) and skin temperature measurement are shown by clinical data to be inaccurate when there is any amount of variability in ovulation [1]. That's simply because they rely on data from previous cycles to predict when ovulation will occur in a following cycle. If you don’t ovulate in the middle of your cycle or your timing of ovulation is variable, then the prediction is likely to be incorrect.

OvuSense was developed to provide the same benefit as urine based luteinizing hormone tests (OPKs) by predicting the onset of ovulation up to one day in advance in real time in each cycle. However, it does so with greater accuracy [2], without having to repeat tests multiple times a day, and crucially OPKs don't work when variability in ovulation is caused by an ovulatory issue such as PCOS. [3].

Endorsed by doctors and fertility specialists, and able to work whatever is happening in your cycle, why use anything else? OvuSense is helping women all over the world just like you to take control of their fertility. [2]

find OvuSense much easier to use than other fertility tools*

of users would recommend OvuSense to a friend*

of users say they feel less stressed and more in control of their fertility*

*2019 user study

How does it work?

OvuSense is as easy as 1, 2, 3...

Record: Insert the sensor into your vagina overnight. It measures your core temperature every 5 minutes. No radio waves are transmitted from within your body, so OvuSense is completely safe to use.
Upload: In the morning, remove the sensor, wash it and download its data to the OvuSense App. OvuSense uploads data to a secure cloud database, keeping your information safe.
Plan: OvuSense provides live updates predicting ovulation up to 24 hours in advance using your current cycle data. This helps you time your conception during each individual cycle, even if you have irregular ovulation timing. OvuSense then confirms ovulation with 99% clinically-proven accuracy. Helping you diagnose any issues and track the effect of any medication you may be taking. Giving you every answer you need about your cycle all in one device

"I am pregnant with my
second OvuSense baby.
We were trying for 8+
years before that.”

“Finally pregnant! I have adrenal PCOS, a blocked right tube, and crazy irregular cycles. I’m also at high risk for miscarriage. It took a year of trying BUT, I do have to thank Ovusense. It helped me identify what symptoms I had during ovulation (like breast tenderness that I assumed was a PMS symptom) which allowed me to pinpoint when I was ovulating. I will be surprising my husband tonight when he gets home. I’m still in shock! Good luck to everyone. I hope this one sticks!”


“My name is Caroline and my OvuSense baby is 2 years old now. I have been diagnosed with PCOS and I used to be a customer like you, trying to conceive. I now work for OvuSense helping women like me everyday. With OvuSense, you are not just buying a product, you are buying a complete fertility support system and we are here for you every step of the way. In addition to technical support, we offer you an hour long fertility nurse consulation (after 3 cycles) - all free with OvuSense.”

Caroline Price
Customer Relations Manager, The OvuSenseTeam

OvuSense App

Download the free OvuSense App, the only one you need for complete fertility monitoring

Reads data from your OvuSense Sensor, 3 graphing modes, 4 completely customizable event types
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