The Billings Ovulation Method®, developed from the clinical studies of Drs John and Evelyn Billings of Australia first began in 1953 after Dr John was asked by Fr Maurice Catarinich, a Melbourne Marriage Guidance Counsellor, to help couples who had a serious reason for avoiding a pregnancy.

As the Method developed and spread, it was clear that what had been discovered was good for humanity.  The scientific validation offered by the work of Professors James B Brown of Melbourne, Australia and Professor Erik Odeblad of Umea, Sweden meant that the Method was able to be offered confidently to all corners of the world.

In 1978 WOOMB International Inc was formed as a company in California USA to ensure that those organisations and individuals wanting to help to spread the work could be offered Affiliation.  This original organisation, WOOMB International Incorporated, had Drs John and Evelyn Billings, Dr Kevin Hume and Msgr Robert E Deegan as Executive Directors.  A further seven persons from various countries made up the Advisory Board.

Due to difficulties in administering a company outside Australia, WOOMB International Incorporated was formally wound up by Dr John Billings in 2005.  In February 2006 a new company was incorporated in Australia – WOOMB International Ltd, with four Senior Teachers of the Billings Ovulation Method®, who had worked closely with the Drs Billings, appointed as Directors. 

At this time the Drs Billings handed a mandate to this new organisation, through its Directors, to ensure the authenticity of the Billings Ovulation Method® globally.  Fr Joseph Hattie, OMI, an original member of WOOMB Inc Advisory Board was appointed as Spiritual Advisor.  One of the original Directors has resigned and the number of Directors is now five.   The Advisory Group is currently eleven Associate Directors, and the Directors are honoured to have a number of consultants who have agreed to offer specialised advice when required.  The Patron of WOOMB International Ltd is Professor John Murtagh.

WOOMB International Ltd offers affiliation to those organisations that have shown that approved literature is used in the teaching and training of the authentic Billings Ovulation Method® and that the Method is offered to all who seek their services. There is only one Training and Accrediting Organisation affiliated for each country.

To read a copy of the Charter of WOOMB International Ltd.