Period Menstruation Calendar description

Currently there are many ways to avoid pregnancy safe as using condoms, male sterilization, female sterilization, IUD ... but each has its own advantages and disadvantages one. Here kienthucgioitinh.org will show you how effective contraceptives based on the menstrual cycle. For women with menstrual cycles were then used method to calculate the menstrual cycle contraceptive security will be more effective, safer.
Pros:

★ Save, inexpensive
★ Let feeling, comfortable, increase pleasure
★ Check the chance of pregnancy per day from the calendar
★ Backup and restore your Google account;
★ Backup and information menstrual cycle in the phone memory or send via email.
★ Subscribe cycle, process monitoring menstruation
★ design unique form of diary