• Pregnancy Planning

    When it comes to getting pregnant, timing is everything! There are just a handful of fertile days each cycle when it is possible to conceive. Daysy tells you when these fertile days fall each cycle and when you are most fertile, with the prediction of your ovulation day. You will have the information you need to plan a pregnancy with your partner.

    Link to Pregnancy Planning 

  • Quick Guide

    It's as easy as:

    1. Charge your Daysy
    2. Measure your temperature
    3. Enter your menstruation
    4. Get More with the DaysyDay App
    Link to Quick Guide 

  • DaysyDay App

    Winner of a Best of Swiss Apps 2021 Award, the companion app to the Daysy fertility tracker is designed with the feedback from our users and decades of experience in the fertility tracking market. Together, Daysy and DaysyDay provide you with the knowledge and tools needed to identify your fertile window and make informed and powerful choices about your menstrual cycle, fertility, and health.

    Link to DaysyDay App 
Daysy Main site

FAQ

Can I share Daysy with a friend?

No, Daysy is your individual fertility tracker with your individual data.

How does Daysy work?

Daysy is programmed with a complex algorithm which evaluates your cycle by tracking your morning temperature (taken under the tongue) and knowing when you have your period. Daysy will then show you right away if you are currently fertile or not.

Can I use Daysy if my cycle is irregular?

Yes. Daysy can handle irregular cycles with high accuracy. However, extreme fluctuations may result in more "yellow days," indicating possible fertility.

I sleep with my mouth open. Can I still use Daysy?

Yes. If you sleep with your mouth open, just close it once and swallow before you measure. The measurement is finished when the temperature has reached its final value and you hear a soft beep beep from Daysy. Daysy may take a couple of seconds longer to measure for those users who sleep with their mouths open. Please be sure not to open your mouth while measuring.

How accurate is Daysy in determining fertile days?

Daysy distinguishes between fertile and non-fertile days with over 99% accuracy.

What is the DaysyDay app, and how does it work?

DaysyDay is a free app that, when synchronized with Daysy, displays your fertility status and provides insights into your cycle.

How do I know if my Daysy is charging correctly?

For Daysy 2.0, the blue light on the activation ring moves upward while charging. All blue lights illuminate when fully charged.

What should I do if I didn't charge my Daysy when prompted?

Try charging Daysy overnight using the USB cable connected to a PC or phone charger. If it doesn't wake up, contact support.

Does my diet affect my menstrual cycle?

Strict diets can lead to cycle irregularities, often causing delayed periods.

How does Daysy determine my fertile days?

Daysy uses the Fertility Tracker Method, analyzing basal body temperature and menstruation data to calculate fertility status.

Can I use Daysy with a copper IUD?

Yes, Daysy can be used alongside a copper IUD to monitor your cycle.

What factors can influence my temperature and cycle?

Factors include excessive alcohol, sleep deprivation, illness, stress, significant exercise, strict diets, malnutrition, and travel.

When should I see a doctor if I can't achieve pregnancy?

If unsuccessful after 6 to 12 months of trying, consult your physician.

How often do I need to update my Daysy device?

Updates are rare but may occur to improve usability. They are available through the app.

Do I need internet access to use the DaysyDay Partner App?

Yes, internet access is required to display current data and manage permissions.

What should I do if the Daysy update fails or doesn't start?

Ensure you activate Bluetooth on Daysy only after pressing Start on the app. If issues persist, contact support.

Will updating Daysy erase my data?

No, but it's recommended to synchronize before updating to back up your data.

How do I use Daysy to get pregnant?

Determine your fertile days with Daysy and have intercourse during those days to increase chances of conception.

What are the early signs of pregnancy?

Early signs include breast tenderness, smell sensitivity, fatigue, cramping, spotting, and missed menstruation.

How does cervical mucus relate to fertility?

Cervical mucus changes throughout the cycle, becoming clear and stretchy during ovulation, indicating high fertility.

What is the calculothermal method used by Daysy?

It's a fertility awareness method combining basal body temperature monitoring with statistical analysis to predict fertile days.

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