Period Calendar is the most easy period and cycle tracker application for girls to track my ovulation,my fertility and my cycle with professional quality which you can know which days are higher rate to get pregnant, or which days are safe, like your secret diary.
Except the basic period cycle tracker function, with Period Calendar girls can record anything about herself such as cycles, symptoms, moods, intercourse, weight, temperature, note or pills which you want birch control and etc. It is designed to be your personal period tracker diary and sweet secretary.
It is not only the most simple period tracker, but also safe enough to keep your period secret. You can also switch multi account if you need to track periods and cycles for different persons. If necessary, you can even send your period and cycle tracker data to your doctor. It should make your life easier whatever you get pregnancy or want to birth control.