The Fertility Calculator or Menstruation and Ovulation Calendar application helps couples who are on a program to get pregnant quickly or have a baby. This fertility calendar application is based on a formula for calculating the fertile period that has been medically proven. How to calculate a woman's fertile period to get pregnant quickly requires two data, namely HPHT data (First Day of Last Menstruation) and Menstrual Cycle. This application for calculating the fertile period is quite accurat