Natural family planning is considered an alternative to hormonal contraceptives by many women*. Instead of artificially interfering with the menstrual cycle , it relies on observing bodily signs such as basal body temperature and the quality of cervical mucus. The idea behind it: to recognize ovulation , determine the fertile days, and thus avoid pregnancy. But what methods are available, how reliable are they – and which thermometer is suitable for daily use? Find out more here!

This includes various approaches:

• Symptomothermal method: Combination of basal body temperature and cervical mucus quality .
• Temperature method : daily measurement of body temperature to detect the rise after ovulation .
• Mucus method : Observing the quality of cervical mucus to determine fertile days .

Among hormone-free contraceptive methods , the symptothermal method is considered particularly reliable – provided it is used consistently.

As compelling as the advantages are, natural contraception is not without its limitations:

• Discipline required: daily measurements of basal body temperature and regular observations are mandatory.
• Accuracy : Errors in determining ovulation or missed days can reduce reliability .
• Additional contraception is necessary: ​​On fertile days, another contraceptive method must be used during sexual intercourse .
  

These disadvantages do not mean that the method is unsuitable – rather, they show how important conscious and careful application is.

The question of the most reliable hormone-free contraception almost always leads to the symptothermal method . It combines two bodily signs , thereby reducing the risk of misinterpretations. Studies show that, when used correctly, this method can achieve a high level of effectiveness , comparable to other hormone- free contraceptives .

Consistent determination is crucial: Only those who measure regularly and document their observations can reliably pinpoint their fertile days .

The key to natural contraception is a precise understanding of your own cycle . Daily measurement of basal body temperature allows you to identify the time of ovulation . The quality of cervical mucus also provides clues: if it is clear and stretchy, you are fertile . After ovulation, the mucus becomes thicker again, and the temperature rises.

Determining fertile and infertile days therefore requires patience and precise documentation. Digital tools like the Ovy app and the Ovy basal thermometer provide valuable support in this regard.

A precise thermometer is crucial for the symptothermal method . It is important that it measures body temperature to two decimal places. Only then can the subtle differences associated with ovulation be detected.

Natural, simple, hormone-free: Ovy App!

The Ovy basal thermometer and the Ovy app are therefore ideal for this purpose. The readings are transferred directly to the app. This simplifies the application , minimizes errors, and provides a clear overview of the entire cycle .

Natural contraception offers many advantages : no hormones , no medical interventions, no lasting side effects . However, it requires a good understanding of one's own body . Consciously observing the menstrual cycle , measuring basal body temperature , and documenting the quality of cervical mucus provides a solid foundation for making informed decisions.

For women* who want to avoid side effects and are looking for practical, digital support, modern solutions like the Ovy app in combination with the Ovy basal thermometer can be ideal. They combine researched methods with contemporary technology – making natural contraception suitable for everyday life.

• Frank-Herrmann, P. et al. (2007). The effectiveness of a fertility awareness based method to avoid pregnancy. Human Reproduction, 22(5), 1310-1319.
• Manhart, MD et al. (2013). Fertility awareness-based methods of family planning: A review of effectiveness. Osteopathic Family Physician, 5(1), 2–8.
• World Health Organization. (2016). Selected Practice Recommendations for Contraceptive Use. Geneva: WHO.