What your basal body temperature reveals about ovulation and your fertile days
Anyone who truly wants to understand their cycle needs more than just a calendar.
Because when ovulation actually occurs – and when it doesn't – cannot be calculated solely based on regularity or the date. This is precisely where the symptothermal method comes in: It combines several bodily signs to track the cycle as precisely as possible.
A key factor is basal body temperature . It changes measurably around ovulation – and provides clues about your fertile days. In this article, you'll learn exactly how this works and why this method is a good option for contraception. We'll also show you how the Ovy app helps you track your cycle easily and without hormones.
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What if your body told you exactly when you were fertile – and when you weren't – every single day?
Not as a vague assumption or average value – but based on a clearly measurable signal. Basal body temperature does exactly that. It documents your fertility!
Basal body temperature reveals the change: a slight rise in body temperature after ovulation, a pattern that develops throughout the cycle. Recognizing this pattern allows for a much more accurate pinpointing of fertile days .
This is exactly where the symptothermal method comes in – it combines basal body temperature with other bodily symptoms – such as cervical mucus – to precisely determine the fertile days.
Wanting children: Why timing alone isn't enough
Those who wish to use hormone-free contraception need a clear understanding of their fertile days in their cycle. Basal body temperature plays a key role in this as well.
However, measuring basal body temperature alone is not sufficient, as it only confirms ovulation retrospectively.
The symptothermal method, on the other hand, combines temperature measurement with observation of cervical mucus to more accurately identify fertile days . When used correctly, this method is very effective. However, it requires consistent and accurate tracking.
The Ovy App: Your companion for precise cycle tracking
The Ovy app helps you easily track your basal body temperature and cervical mucus . The Ovy basal thermometer with Bluetooth provides a convenient and precise temperature measurement in the morning.
The Ovy app uses the symptothermal method . By combining temperature data with cervical mucus monitoring, you get an overview of your fertile days – completely hormone-free.
Advantages of the Ovy App & the Ovy Bluetooth Basal Thermometer
- Cycle tracking : Daily temperature measurement and determination of fertile days.
- Automatic transmission : Temperature is transmitted directly to the app – no manual input required.
- Integrated bodily symptoms : Cervical mucus and other signals provide a comprehensive picture of the menstrual cycle.
- Individual modes : Special functions for natural contraception or when trying to conceive.
- Certified medical device : CE certified according to the EU Medical Device Regulation.
- User-friendly : Easy to use on iOS and Android.
Conclusion
The symptothermal method offers a natural way to understand one's own cycle and determine the fertile days .
Daily tracking is easy with the Ovy app and the compatible Ovy basal thermometer . Suitable for contraception or when trying to conceive!
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Für die tägliche Messung der Körperkerntemperatur nach dem Aufwachen.
Die passende Ovy App ermöglicht die Nutzung zur natürlichen Verhütung.
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Evelyn (28)
Natural body awareness
I'm finally off the pill and I feel so much better. Freer. Emotionally different too. A quick measurement in the morning, checking my cervical mucus – done. Especially for women in relationships, it's the ultimate solution!
Deborah
Simply amazing!
The Ovy method is a completely new experience for me. I'm so glad I found this natural, hormone-free method. And without latex ;)
Lena
Very satisfied
The app is incredibly intuitive and easy to use. I'm particularly impressed by the well-thought-out design – modern, clear, and appealing. But what really convinces me is the personal and reliable support. Instead of a chatbot, you quickly get a friendly answer from real people. I've been using the app for many years.
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Ovy App Lifetime Membership with Bluetooth Thermometer
Ob Kinderwunsch oder Verhütung - Jetzt Zyklus tracken!
Für die tägliche Messung der Körperkerntemperatur nach dem Aufwachen.
Die passende Ovy App ermöglicht die Nutzung zur hormonfreien Verhütung.
Automatische Übertragung der Messdaten und Speicherung verhindert Fehler bei der Dateneingabe.
Women* report a new body awareness
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Note: The Ovy app is a certified medical device for hormone-free contraception. It is used to determine fertile and infertile days on a daily basis. Its use requires regular and correct use of the thermometer.
Sources & further reading:
- Charkoudian N, Stachenfeld N. Sex hormone effects on autonomic mechanisms of thermoregulation in humans. Auton Neurosci. 2016 Apr;196:75-80.
- American Congress of Obstetricians and Gynecologists. FAQ024: Fertility awareness-based methods of family planning. 2015.
- Reed BG, Carr BR. Endotext. Online publication. The normal menstrual cycle and the control of ovulation. 2015.
- American Congress of Obstetricians and Gynecologists. FAQ024: Fertility awareness-based methods of family planning. 2015.
- Freundl G, Frank-Herrmann P, Brown S, Blackwell L. A new method to detect significant basal body temperature changes during a woman's menstrual cycle. Eur J Contracept Reprod Health Care. 2014 Oct;19(5):392–400.
- Frank-Herrmann P, Heil J, Gnoth C, Toledo E, Baur S, Pyper C, Jenetzky E, Strowitzki T, Freundl G. The effectiveness of a fertility awareness based method to avoid pregnancy in relation to a couple's sexual behavior during the fertile time: a prospective longitudinal study. Hum Reprod. 2007 May;22(5):1310–9.
- Mackowiak PA. Temperature regulation and the pathogenesis of fever. Principles and Practice of Infectious Diseases. 2000;6:703–18.