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As easy and comfortable as a woman's menstrual diary, and
Predict the date of the next menstrual shows.
Ovulation calculator function can
Reproductive life span etc on the calendar shows.
Contraception to avoid pregnancy period of custody.
Memo field to be able to write a couple of like a diary.
Ovulation, pregnancy ganeungil, physiological prediction of the date used as a reference, as there is a difference depending on the ladies and please