ACIO Ovulation Calender is an easy-to-use precise conception calculator of menstrual cycles,firtility, ovulations. It helps you to achieve or avoid or achieve pregnancy, or even conceive a baby boy or girl. ACIO Ovulation Calendar helps you use a natural contraception method. It displays days when you are fertile, days of ovulation and predicts your baby`s gender. The results are presented as a color-coded menstrual calender.