This book is fantastic. I wish I had read it ages ago. I'm still not super clear on everything I'm supposed to do, but since I borrowed it from the library and had to give it back, I don't have it on hand to reference. I'll probably end up getting my own copy, especially since there are sections about menopause that I skipped. But yeah, this explains how your body works, even if you don't want to get pregnant or if you use another type of birth control.