femSense 24/7 Ovulation Tracker - the Easy Way to Track Fertility & Confirm Ovulation
The femSense ovulation tracking patch reads your temperature 24/7 to detect the specific pattern related to ovulation. Predict and confirm your fertile day. Get real-time readings and start your fertility journey with clarity.
- Just 1 patch per cycle worn during your fertile window
- Confirms ovulation with 99.73% accuracy
- Created by fertility experts to pinpoint your day of ovulation
- Includes free femSense app
- FSA/HSA-Eligible
femSense 24/7 Ovulation Tracker - the Easy Way to Track Fertility & Confirm Ovulation
Always Know Your Ovulation Day
Discover the New Standard in Fertility Tracking with femSense®
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Predict and Confirm
femSense® predicts and confirms ovulation, empowering you with knowledge to make informed reproductive health decisions.
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Consistent Accuracy
femSense® utilizes advanced skin temperature monitoring technology to detect your ovulation with 99% acccuracy.
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Continuous Monitoring
femSense® offers a comprehensive 24/7 view of your fertility window. This means better planning for your most fertile days.
Let customers speak for us
Femsense really works! I was doubtful at first, sinse I have PCOS, but first time using it, it actually detected my ovulation, I also had a progesterone blood test that showed, that I ovulated. I unfortunately didn't get pregnant that cycle, but will 100% be buying it again, worth the money, it's better then peeing on sticks and trying to read them.
I got pregnant the first month with femsense. I was actually ovulating 2 days later in each month than I thought so we had stopped trying by then. With this it knew the ovulation day and we hit it perfectly! I’m amazed it worked so well.
After few days with patch I do become irritated slightly but nothing major. I used product for about 3 months and was able to conceive. Was able to see that my ovulation was slightly more delayed than thought which helped with our timing
I was able find and see when I actually ovulated. It took the guess work out!!
femSense Ovulation Tracker
femSense Ovulation Tracker
This made confirming ovulation so simple. Easy to apply and then you just go about your fertile week! I had never been able to "for sure" confirm I was ovulating trying to guess with hormone sticks or try to do basal temp with a thermometer making sure i was doing everything right...this made it SO EASY!!
And the JOY i felt when it told me it confirmed ovulation was IMMENSE!
After 14 months of trying to get pregnant and countless amounts of negative ovulation sticks I came across FemSense on TikTok. Decided to give it a try since I had tried everything else and to my surprise I ovulated sooner than anticipated after my period. To be exact, FemSense sensed I ovulated 9 days after my period. Few weeks after that got my positive pregnancy test ❤️
I got pregnant on the first use of this!! So happy that I tried this product!
Great enjoying it
The app and patch are easy to use. That’s what I need right now.
I wore both the patch and my temp drop band. Surprised how spot on it is. It let's you know that you ovulated where as my other let's you know it's close....super impressed ordering more patches!
I've been using Femsense for 2 months now with the goal of avoiding pregnancy and it has been a game changer! I love the ease and accuracy of it!
I have used this product for 2 months after having a baby 9 months ago. I’m not pregnant after the 2nd month of this patch!
I was hesitant about trying this product, but it found my ovulation day with the first patch! The change in BBT wasn't detected until the second reading that night, so I'm not sure how much longer I was in my fertile window. I would recommend this product to others because it is affordable and reliable! Between this and urine LH test, I was able to confirm this. I was using this product to get more familiar with my body, but when I am ready TTC I will use this product again!
FAQs
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femSense® works by using a smart patch that continuously measures body temperature to determine and confirm ovulation.
Here's how it operates:
You enter your cycle data in the femSense app, and it prompts you when to apply the patch. The femSense patch measures body temperature around the clock for up to 7 days per cycle. This data helps determine when you are most fertile.
Once the patch is applied, it does the monitoring, all you need to do is scan it with the femSense app 2x per day. The femSense app analyses the temperature data to predict and confirm your fertile days.
The patch is designed to be non-invasive and is made of medical-grade materials, making it suitable for sensitive skin and easy to use.
femSense uses AI to learn from your cycle data over time, improving its accuracy and reliability in predicting your fertile windows .
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femSense will give you your seven most fertile days, and will confirm your day of ovulation.
The app will give you resources based on your cycle data, supporting you throughout your cycle.
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The femSense® smart patch tracks the specific changes in body temperature to confirm ovulation, providing a more precise and less invasive alternative to LH tests. Unlike LH tests, which predict ovulation based on hormone surges and require daily testing, femSense offers continuous, automatic temperature monitoring. This brings Basal Body Temperature (BBT) to the 21st century, and not only confirms that ovulation but also eliminates the daily hassle and guesswork associated with LH strips, making it a more user-friendly option for tracking fertility.
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femSense® is suitable for fertile those who bleed and ovulate. If your cycle is between 21 and 35 days and your cycles don't typically differ more than +/- 3 days, femSense is for you!
If your menstrual cycle is irregular, then femSense cannot predict your fertile window reliably. In this case, we recommend you consult a doctor before choosing femSense.
While we would love for femSense to be suitable for everyone, it is important to note that this may not be the case.
If you have sensitive skin or allergies to medical-grade adhesives, the femSense sensor patch may not be suitable for you. However, you can still use the femSense app as a period and symptom tracker.
Weight conditions (underweight or overweight) can increase the risk of adhesion issues or skin irritations with the patch. If you have a BMI lower than 18.5 or higher than 30, femSense has not been tested for accuracy for you.
Keep in mind, excessive consumption of nicotine or alcohol can impact body temperature and potentially affect the accuracy of femSense in detecting ovulation.
The algorithm bases its prediction of your fertile window on previous cycles and the patch is only worn for a maximum of 7 days during this time. If the patch has not measured ovulation in this time the app will notify you and ask you to remove the patch. This means if you have a very long cycle after a few shorter cycles the app could predict your fertile window too early, and the patch would not measure your ovulation.Regrettably, this means we cannot recommend femSense for women with PCOS and therefore an irregular cycle. However, we have had several customers with PCOS who had phases of regularity for whom femSense worked, which is why we say we cannot recommend femSense for PCOS but every woman is an individual and even PCOS seems to be individual!
If you are unsure whether femSense is suitable for you, please contact your doctor or get in touch with our technical support via e-mail to: customercare@femsenseus.com
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You can use one patch per cycle. After applying and activating a patch according to the in-app instructions, the patch is associated with your current cycle.
You will need one patch per cycle that you plan to use femSense®. If your goal is to get pregnant, data from a recent study on women using natural family planning like femSense can help you determine how many you might require:
42% conceived in their first month of trying
75% conceived by their third month
88% conceived by six months
98% conceived by 12 months
Recent user data suggests the average femSense user in "Get Pregnant" mode uses 2.35 patches before reporting pregnancy (per September 2023 user data). Everyone is different and femSense cannot make any guarantees about when an individual may become pregnant, but we hope this helps!
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The temperature sensor used in the femSense patches detects temperature differences smaller than 0.1°C and was especially designed to detect the postovulatory temperature rise, which is typically between 0.2°C-0.5°C.
In contrast to the basic basal temperature measurement method the patch records a temperature value several times per hour. As the patch is always in the same position, measurement artifacts can be minimized. A clinical study with the medical university in Graz proved the accuracy of the sensor patch and now an independent Swiss statistics institute has confirmed that femSense is 99.73% accurate when predicting ovulation.
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femSense® is a FSA- and HSA-eligible product and, can be paid for on femSenseUS.com with your FSA or HSA card.