The most accurate fertility monitor available for regular cycles

Who is OvuFirst for?

If you have regular periods and your cycles are 24-35 days long on average, our OvuFirst sensor is designed just for you.

Why should I use it?

OvuFirst’s best-in-class accuracy gives you a better chance of getting pregnant more quickly. By reading your unique cycle pattern, it provides a full 8-day window telling you when you should try and conceive.*

How does it work?

Wear the OvuFirst sensor on your arm or wrist each night and download each morning to our free OvuSense App. The OvuSense App then provides a real time chart and clear fertility messages.

Why should I trust the results?

OvuCore uses our revolutionary patented OvuSense technology trusted globally for over 10 years. Unlike other products, OvuCore is a class II medical device. That means we have to prove what we claim through externally reviewed clinical studies.

Take control of your fertility and choose OvuFirst today

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How does OvuFirst work?

Tracking your cycle in real time

Cycle 1

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.

Real time cycle tracking app - Cycle 2
Real time cycle tracking app - Cycle 1

Cycle 2

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

Along with the free OvuSense App, our OvuSense sensors are designed to put you in control of your fertility. OvuSense helps you understand the best time to try to conceive in each cycle, and what your cycle pattern looks like over time, giving you the best chance of pregnancy regardless of where you are in your journey. Choose either the OvuFirst™ skin-worn sensor or the OvuCore™ vaginal sensor based on which suits you best.

OvuFirst™

I have regular 24-35 day cycles
My cycle length varies from month to month
I have PCOS or other ovulatory issues
I want the option to pay monthly, until I get pregnant
I want an 8-day fertile window predicted at the start of each cycle
I want to have a prediction of ovulation using current cycle data (like an OPK)
I want to confirm my ovulation each cycle
I want to use it as a contraceptive
I want to be able to screen for fertility issues*
I want my doctor to track medications and treatments*
* requires OvuSense® Pro subscription

OvuCore™

I have regular 24-35 day cycles
My cycle length varies from month to month
I have PCOS or other ovulatory issues
I want the option to pay monthly, until I get pregnant
I want an 8-day fertile window predicted at the start of each cycle
I want to have a prediction of ovulation using current cycle data (like an OPK)
I want to confirm my ovulation each cycle
I want to use it as a contraceptive
I want to be able to screen for fertility issues*
I want my doctor to track medications and treatments*
* requires OvuSense® Pro subscription

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:

  1. How large a fertile window will it detect so you can maximize the time when you're trying to conceive
  2. How accurate is it at confirming ovulation - the less accurate the less chance of it helping you in your next cycle
  3. Can it predict ovulation using the current cycle data - something we like to call realtime prediction
  4. Does the system work for PCOS and irregular cycles
  5. Can it help your doctor screen for fertility issues
  6. 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/ How many does it get right
 
Fertile window prediction days
Confirms ovulation
Live ovulation prediction
PCOS and irregular cycles
Screen for fertility issues
Track medications and treatments
OvuSense OvuFirst
(Skin-Worn Temperature)
OS First 8 days 8 days 90% 90% Pro
OvuSense OvuCore
(Core Body Temperature)
OS Core 8 days 8 days 99% 99% 96% 96%   Pro Pro
Fertility Tracker Apps
FTA 4-6 days 4-6 days 21% 21%
Basal Body Temperature
BBT 6 days 6 days 83% 83%
Skin Worn/
Fertility Bracelet Devices
SW/ FB 6 days 6 days 78% 78%
Ovulation Predictor
Kits and Monitors
OPK/ OPM 4-6 days 4-6 days 92% 92%
Serum Progesterone
SP 4-6 days 4-6 days 100% 100%
Ultrasound
US 6 days 6 days 100% 100% 100% 100%

Fertility Testing Methods Key

  • OS First OvuSense OvuFirst (SkinTemperature)
  • OS Core OvuSense OvuCore (Core Body Temperature)
  • BBT Basal Body Temperature
  • FTA Fertility Tracker Apps
  • SWD Skin Worn Devices
  • FBD Fertility Bracelet Devices
  • OPK Ovulation Predictor Kits (urine strips)
  • OPM Ovulation Prediction Monitors (urine strips)
  • SP Serum Progesterone
  • US Ultrasound