Programme calculates the dates with low, average or high probability of conception as well as forecasting of the beginnings of menstruations. The results of the forecast can be used for childbirth planning as well as for contraception. The application \\BabyPlan\\ is intended for forecasting of the dates with low, average or high probability of conception as well as forecasting of the beginnings of menstruations. The results of the forecast can be used for childbirth planning as well as for contraception. Though there are some similar software, only \\BabyPlan\\ uses cumulative statistical data to give the most reliable results.