Training Resources Training Programs are offered by our International Affiliates in more than 40 countries. A Correspondence Training Program is available in English and other languages. Check these out Billings.LifeLearn more about the Billings Ovulations Method and how it can help you The Billings EnigmaKnow the story of two doctors who developed the Billings Ovulation Method Fertility PinpointChart. Connect. Collaborate Support our WorkGive the gift of knowledge that could save a woman’s life. Donate here.