The Hormonal Forecaster easily charts ovulation and fertility to help you achieve or avoid conception and pregnancy by charting the most fertile days of a woman's cycle. The program uses Natural Family Planning techniques such as symptothermal fertility, basal body temperatures, cervical mucus observations, and the calendar method. Let the program do all the calculations for you or utilize the fertility charting feature to interpret your own ovulation charts. The Hormonal Forecaster also generates personal statistics based upon recorded data. You can chart up to 20 moods and/or behaviors telling you everything such as what days you're prone to have headaches, be full of energy, experience menstrual cramps, or anything else you're interested in tracking.

The fertility feature allows you to see exactly which days of your cycle you will be ovulating with an automatically computed margin of error. The program uses Natural Family Planning to generate symptothermal charts (ovulation charts) based upon basal body temperatures and/or cervical mucus observations. Use the fertility meter for one a one stop fertility summary, or interpret your own generated symptothermal ovulation charts. Users not interested in temperature readings and recording observations can also take advantage of the simplicity of fertility calculations and graphing done via the calendar method. The program's 'Pregnancy Advisory' chart allows you to graphically see which days you will be most fertile and therefore most likely to become pregnant.