Links Links to NFP Charts Download a NFP Chart in EXCEL format Download a NFP Chart in PDF format Download a NFP Beginner’s Chart in PDF format Links to NFP Sites Billings LIFE: Official Site of The Billings Ovulation Methodâ„¢ – Leaders in Fertility Education World Organisation Billings Ovulation Method – Detailed information about the Billings Method. Billings Ovulation Method Association, USA – What physicians are saying about the Billings Ovulation Method Billings Ovulation Method Association – USA WOOMB CANADA : The Billings Ovulation Method BOM – Alberta Canada Family of the Americas Foundation One More Soul USCCB – An Introduction to Natural Family Planning Links to Family Life Sites Catholic Family Life Human Life International Links to Other Interesting Sites The Official Website of the Archdiocese of Singapore Dominicans Singapore – Fr David Garcia, our Spiritual Director is a Dominican Priest