The Billings Ovulation Method® was first discovered by Dr John Billings of Melbourne in 1953. He was joined in this work by his wife, Dr Evelyn Billings, and together they travelled the world teaching their method. It is now taught and successfully used by couples in over 100 countries around the world. The Billings Ovulation Method® is used by women at all stages of their reproductive lives to achieve pregnancy, to prevent pregnancy and to safeguard their reproductive health.