Butterfly Calendar of fertile period and menstruation

Monitoring the menstrual cycle to calculate the fertile days with acceptable accuracy. This is a very useful thing to increase the chances of pregnancy, although it can also be used to calculate the opposite, that is, on less fertile.

Butterfly is a calendar that helps you calculate the fertile days of your cycle. To start, click on Settings and defines when the last menstrual period began. Then, modify the duration and cycle time (default 28 days).

Once you apply the changes, Butterfly modify the calendar. Green days indicate ovulation and, therefore, greater fertility. The window will change color and butterfly encouraged to communicate the good news. Click the Menstruation Butterfly selector to show you less fertile days.

New month? Another button lets you set a new date of menstruation. As for Open List, will make an alternative view Butterfly with open daily and features, ready to be printed with another click. The help file Butterfly explains in detail the elements of the interface, and includes a brief explanation of these calculations.