Get to know your woman's cycle! (With a Mac OS X app)

tfproject.org — There are 28 days in a womans mensrtual cycle. This cycle is what really determines how things go between you and her. For example, on Day 24 you should learn to duck. I talked to sex experts and discovered how the hormonal fluxes in a woman's body affect her moods-and your life-throughout the month. Now I have a handy schedule for you to consult.