Richard J. Fehring, PhD, RN, FAAN, is a Professor Emeritus at Marquette University College of Nursing and is a research scientist at the Marquette University Institute for Natural Family Planning. He received his masters and doctorate in nursing from the Catholic University of America and baccalaureate degrees in biology and nursing from Marquette University. He has published over 185 articles and book chapters and co-edited three books on human fertility. Professor Fehring is a science consultant to the Department of NFP USCCB. His research interests include the effectiveness of fertility awareness methods for family planning, marital responses to family planning, and religious and spiritual influences on human sexuality.