JustLady Calendar is a software exclusively designed for women. In fact ladies, this little program offers you careful monitoring of your menstrual calendar. JustLady calendar is equipped with a user-friendly and easy-to-use interface. It does not require any particular skill and a regular update of the program allows you to use new features. With this tool, no longer need to rack your brains over your menstrual cycle. In addition, it is a great help to know your fertile period. This goes to show that everyone stands to gain. The free version of the software can be downloaded from this site.