The Justisse Method Of Fertility Awareness

The Justisse Method is a standardized fertility awareness based method that involves monitoring bodily signs to identify menstrual cycle events and fertile days of the cycle. It is an evidence‑informed approach designed to be accessible to people of all backgrounds, beliefs, and reproductive intentions.

The Justisse Method has two variations: symptothermal and mucus-only. Both can be used to avoid pregnancy, to conceive, and to gain general menstrual cycle literacy and invaluable day-to-day insights into an individual’s menstrual cycle and reproductive health.

The symptothermal Justisse Method involves charting the menstrual cycle by observing the bodily signs of cervical mucus and basal body temperature, with cervical changes as an optional sign. The mucus-only Justisse Method involves charting the menstrual cycle using cervical mucus observations alone.

The Justisse Method is based on day-to-day observations, not predictions, calculations, or an algorithm.

The Justisse Method is best learned from a licensed Justisse Method instructor. This ensures the method is learned properly with personalised guidance throughout the learning process. Our licensed instructors are committed to person-centered education, continuing professional development, and the success of their clients’ ability to confidently use the method according to their intention and at any stage of their reproductive life.

Justisse Method instructors respect each client’s personal values, beliefs, and reproductive choices, including how they may choose to integrate the method with other forms of reproductive planning.

Frequently Asked Questions about The Justisse Method

  • Most charters need a minimum of 6-8 hours of instruction over the course of 5-6 months with a licensed Justisse Method Instructor to feel confident using the method for birth control.

  • Yes, many of our licensed instructors teach the Justisse Method online. Some also offer local, in-person instruction in a one-on-one or group format. Visit our directory to find an instructor near you.

  • In the symptothermal application of the Justisse Method you:

    • Observe cervical mucus daily:
      You pay attention to the presence or absence of cervical mucus through tuning into both sensations and appearance, and record them at the end of each day using a clear, standardized notation system.

    • Take your basal body temperature (BBT) daily:
      Each morning upon waking, you measure your temperature with a basal thermometer and plot the reading on your chart.

    • Interpret your chart daily

    The symptothermal Justisse Method uses coloured stamps and a fertile window row to help you interpret your observations visually. These tools bring your mucus and temperature notations together so you can identify your cycle events and phases, as well as the fertile and infertile days, with clarity.

    In the mucus-only application of the Justisse Method you:

    • Observe cervical mucus daily:
      You pay attention to the presence or absence of cervical mucus through tuning into both sensations and appearance, and record them at the end of each day using a clear, standardized notation system.

    • Interpret your chart daily

    The mucus-only Justisse Method relies on coloured stamps to help you interpret your mucus observations and identify your cycle events and phases, as well as the fertile and infertile days, with clarity.


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  • Many people with irregular cycles successfully use the Justisse Method to avoid pregnancy and improve their health. The Justisse Method is a standardized fertility awareness based method that helps you determine which days are fertile or infertile based on your daily observations and the guidelines of the method. There is no prediction or guessing involved, and your instructor will help you acquire the interpretation skills to be confident using the method for birth control and improving the health of your cycles.  The information gained by charting can then be shared with your medical provider to receive the most appropriate care for your needs. 

    Users should know that FABMs in general have not been studied for unintended pregnancy risk in those with irregular cycles vs those with regular cycles. Potential charters must weigh the pros and cons of all birth control options to decide what is best for them.

  • Justisse College International collaborates with Read Your Body(RYB)  to bring you the option of app-based Justisse Method charting . The Read Your Body app is a privacy focused, non-profit menstrual cycle charting app for iPhone and Android that provides a dedicated settings template for the Justisse Method and allows you to easily share your charts with your instructor or provider.  It’s highly customisable with unlimited additional tracking of symptoms and lifestyle factors. Ask your Justisse Method Instructor for a Read Your Body app discount (3 months free)!