Jane Knight is the Director of Fertility UK - a national fertility awareness service which provides information and support for planning and avoiding pregnancy naturally.  She has over 40 years' experience as a Specialist Fertility Nurse in the NHS and private practice supporting couples using fertility awareness methods.  She is the author of the textbook for health professionals - The Complete Guide to Fertility Awareness - and has trained health professionals at national and international level.

Toni Belfield is a specialist in sexual and reproductive health information.  She has worked in the field for over 40 years. Toni is the author of a number of publications both for the public and health professionals.  She has presented at national and international conferences and symposia.  Toni has worked with medical and health organizations, policy makers, industry and commercial organizations and the media to improve consumer information, clinical and health information for professionals and improve standards and provision of sexual and reproductive health services.  Toni has received honorary fellowships from the Faculty of Sexual and Reproductive Healthcare and from the Royal College of Obstetricians and Gynaecologists.