Taking Charge of Your Fertility: The Definitive Guide to Natural Birth Control, Pregnancy Achievement, and Reproductive Health by Toni Weschler (Paperback, 2015)
Bought this book after moving from disposables to reusable products and having a tough time with medical contraception. It had been recommended to me and I plan to use it alongside the lady comp. Great book for anyone wanting to take charge of there own bodies in a natural way.