for when you're
just starting out
Why choose OvuFirst
Our family of OvuSense fertility monitors help you from the first step on your journey right through to supporting you if you need clinical help.
If you've just started out or know you have regular ovulation, our OvuFirst sensor is designed just for you. It is a completely unique patented sensor technology designed to measure your skin temperature while you sleep giving you a really good understanding of the fluctuations in progesterone which occur during your cycle.
Trust the OvuSense science
We took our revolutionary OvuCore technology proven in over 191,000 cycles of use, and used it to develop and test the best skin sensor available on the market.
Our studies prove the OvuFirst sensor enables your OvuSense App to confirm your fertile window with over 90% accuracy, using this information to provide you with a full 8-day fertile window at the start of your next cycle.
Join the OvuSense family today and choose OvuFirst if you're just starting out.
How does OvuFirst work?
1 Get started
Apply the OvuFirst sensor under your arm or on your wrist overnight, using our specially designed OvuFirst arm or wristband. Your Ovufirst sensor measures your skin temperature continuously every 5 minutes. We recommend the under arm application for maximum accuracy. With no radio waves transmitted from the sensor while applied to your body, OvuFirst is completely safe to use.
2 Sync your device
Remove and clean the OvuFirst sensor before downloading its data to the OvuSense App in the morning. Data are uploaded to a secure cloud database ensuring your information is safe.
3 Record your data
Using your current cycle data generated from the OvuFirst sensor, your OvuSense App provides live updates and plotting your own unique cycle pattern.
Proven in side by side trials with our OvuCore technology, the OvuFirst sensor provides the information to your OvuSense App to confirm your fertile window with 93% accuracy, and predict when you'll be at your most fertile in your next cycle.
Tracking your cycle in real time
Start using OvuFirst immediately by downloading data from your sensor each morning to the OvuSense App. Your temperature is tracked in real time.
Within a few days of ovulation, your OvuSense App will use your OvuFirst sensor to confirm the ovulation date. You can continue to use OvuFirst to monitor your temperature (and from it your progesterone levels) during your luteal phase.
Start your new cycle in your OvuSense App. OvuSense will then predict the 8 days you are most likely to conceive in this cycle. You can continue to use your OvuFirst sensor during your period.
The OvuSense App updates the information it provides in real time during the cycle, replacing the 8 day 'long range' window once it is able to confirm ovulation took place.
Scroll on the OvuSense App to compare your ovulation dates and your cycle pattern. Real time data can be shared with your partner and/or a medical professional through the OvuSense Pro clinician portal.Read about women already using OvuSense
Meet the OvuSense fertility monitoring family
Click on one of the boxes below to find out more about the other members of the OvuSense family.
Which fertility monitor is right for me?
Compare OvuSense with other methods for monitoring your ovulation and reproductive cycle.
As you consider which fertility monitor fits you best some typical things to consider are:
- How large a fertile window will it detect so you can maximize the time when you're trying to conceive
- How accurate is it at confirming ovulation - the less accurate the less chance of it helping you in your next cycle
- Can it predict ovulation using the current cycle data - something we like to call realtime prediction
- Does the system work for PCOS and irregular cycles
- Can it help your doctor screen for fertility issues
- Can it help you and your doctor monitor your medication or treatment
Each of the statistics quoted below are derived from clinical evidence available on fertility monitoring methods and products. Pro refers to the OvuSense Pro clinician portal. Click on the 'i' icon next to each method in the table, or directly on the method in the table on mobile devices to find out more about the clinical evidence.
|Feature / Wie viele macht es richtig|
Fenster der fruchtbaren Tage
Bestätigkeit den Eisprung
Vorhersage des Eisprungs
PCOS und unregelmäßige Zyklen
(Core Body Temperature)
|Fertility Tracker Apps||FTA|
|Basal Body Temperature||BBT|
Fertility Bracelet Devices
|Ovulation Predictor |
Kits and Monitors
Fertility Tracker Apps (SW/ FB)
Basal Body Temperature (SW/ FB)
Skin Worn/ Fertility Bracelet Devices (SW/ FB)
Ovulation Predictor Kits and Monitors (SW/ FB)
Serum Progesterone (SW/ FB)
Serum Progesterone (SW/ FB)
Ultrasound (SW/ FB)
Fertility Testing Methods Key
- OS First OvuSense OvuFirst (SkinTemperature)
- OS Core OvuSense OvuCore (Core Body Temperature)
- SWD Skin Worn Devices
- FBD Fertility Bracelet Devices
- OPK Ovulation Predictor Kits (urine strips)
- OPM Ovulation Prediction Monitors (urine strips)