Wopla - Woman's Planner is a family/sexual life planner application which helps you to:
calculate the day of next menstruation(s)
calculate the safe days in which you may have unprotected sexual intercourse
calculate the fertile days (if you intend to get pregnant)
calculate the most probable days to conceive a girl or a boy
determinate the approximate day of the baby's birth and the zodiacal sign of the baby
The algorithms used by Wopla - Woman's Planner are based upon recognized medical methods of calculum.