Fertility Calendar generates 6 useful charts based on the woman\'s menstrual cycle data:

	Luteal phase or Menstruation.
	Free Sex Days: The time with the lowest pregnancy percentage.
	Fertility: The time with the highest likelihood of sexual intercourse leading to pregnancy.
	Ovulation: Presence of female mature egg that is capable of being fertilized.
	Conception Boy: Highest chance to get pregnant with a Boy.
	Conception Girl: Highest chance to get pregnant with a Girl.