The book that you, Lysia, are referring to is
Taking Charge of Your Fertility: The Definitive Guide to Natural Birth Control, Pregnancy Achievement, and Reproductive Health by Toni Weschler, MPH
http://www.ovusoft.com/ and
http://www.amazon.com/gp/product/006...83155&v=glance
Another excellent book written by a longtime macrobiotic obstretrician-gynecologist, Dr. Christiane Northrup, M.D., is
Women’s Bodies, Women’s Wisdom: Creating Physical and Emotional Health and Healing http://www.drnorthrup.com/health_sto...manswisdombook see
Our Fertility in
Table of Contents on page
ix http://www.amazon.com/gp/reader/0553...=0#reader-page
and also
http://www.drnorthrup.com/womens-health-fertility1.php
Be Well.
Cool Dude