About Us



SERENA is a national organization that specializes in the teaching of the Sympto-Thermal method of natural family planning. Serena’s services are available in most provinces across Canada. Volunteer couples are trained locally, and then accredited by Serena Canada. Where there are no teacher couples available, our services can be obtained by distance education. Our national team consists of medical advisors and program managers. The dedication of our volunteers and professionals assures high quality services.


Serena was founded in 1955 by Gilles and Rita Breault from Lachine Quebec (Montreal area). They first developed the Sympto-Thermal Method for their own needs, but soon realized that couples in their community were also in need of this same knowledge to plan their family in a way that respected their values.

The first team was established in 1962 under the name of SERENA.

Expansion took place in Quebec in the mid 60’s and across Canada in 1970’s and 80’s thanks to the financial support from Health Canada. However the support from Health Canada ceased in the 1990’s.

Since then we have continued to find alternative funding opportunities, and strive to grow and develop to meet the needs of today's couple's. 


Serena’s mission is to enable couples to manage their fertility in a natural and effective manner based on a better knowledge and understanding of the female cycle of fertility.  We are committed to:  building healthy marriage relationships based on respect and trust, and supporting couples in seeking to delay or achieve pregnancy through the utilization of the Sympto-Thermal Method of Natural Family Planning.



Our philosophy is that every couple can understand their fertility, and that this awareness can provide the information on which they base their family planning decisions and behaviour. Respect for individuals and for human life from conception is central to our philosophy. 



Serena approach is couple to couple.  Volunteer teacher couple’s meet enquiring couples on this basis.  We believe that successful family planning needs the involvement of both partners. 

Family Planning is not a medical issue.  Everyone can understand fertility, become self-reliant and manage their fertility.  It does not have to be in the hand of professionals. Serena respects the natural fertility cycle and is committed to the empowerment and support of couples. 

We believe that family planning should be available to all people. We teach a method that is inexpensive, environmentally friendly and helps you to protect your health.

Team Work:

Serena’s success is largely due to the teamwork of our dynamic and passionate members, which include teacher couples, coordinators, collaborators, medical advisors and staff. We recognize the tireless efforts of hundreds of volunteer teacher-couples, as well as many collaborators and coordinators who generously give of their time to share and teach this knowledge


Serena is honoured by the long commitment of one of our medical advisor’s, Dr. Suzanne Parenteau-Carreau, who is a world-respected fertility researcher and a vital part of our team. The method we have today has largely been developed and refined by Dr. Suzanne. She continues to develop and review our technical materials and advise teacher-couples when STM charts are difficult to interpret. In the last few years Dr. Fabien Ballesteros joined her with lots of new ideas.


In house research on thousands of women's cycles, reproductive histories, breastfeeding experiences and menopausal experiences has been conducted by Serena Canada over the last 50 years. This has contributed to the refinement and standardization of teaching and charting of the Sympto-Thermal method as well as the development and publication of Serena's teaching materials. Serena has also been involved in consultations with other NFP organizations and professional agencies both within Canada and Internationally. Serena’s expertise and experience are well recognized throughout the world.

Our Goal:

At Serena our goal is to continue to stay at the forefront of scientific development to better understand the female cycle and how this relates to fertility.  We review scientific research constantly and refine the method as appropriate. Research advances have led to the accurate, comprehensive and improved sympto-thermal method that we teach today. We are continuing to strive to adapt to the needs of today's women and couples to provide STM teaching that is accessible to all.


Serena Canada is a registered charity (Charity #119145621 RR0001).  Most of the provincial Serena teams are incorporated and have their own charitable number the details are on their own provincial page.  Serena at each level relies on private donations from individual or organizations.  We are not government funded or specifically backed by any particular group or organization.

The fulfilling of our mission is made possible due to the generous monetary donations of many, and the time and commitment of our members. We appreciate all the generous support of those who assist Serena in all the various aspects of its work.

Please donate and support our mission!

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