Fertility and Period Tracker 14.0

The application is based on scientific research and offers assistance in determining fertile days of the month for either achieving or avoiding pregnancy. By utilizing the date of the last period, it provides information such as the next period date, the best days for conceiving a baby, the ovulation day, and when to avoid pregnancy.

The default method used for baby gender prediction is based on the well-known theory by Landrum Shettles. However, the application also supports a scientific baby gender prediction method, which is based on the research conducted by Rodrigo Guerrero and the analysis of statistics from thousands of women.

In the "Settings" screen, users have the option to change the gender prediction method. It's important to note that both gender prediction methods only slightly increase the chances of conceiving a specific gender and do not guarantee the result.

This is the full version of the application, providing access to the following data:

• The probability of getting pregnant on the current day or any selected day
• The probability of conceiving a girl or a boy using the selected gender prediction method
• Chances of getting pregnant during the current menstrual cycle
• Chances of conceiving a girl or a boy during the current menstrual cycle

To generate the menstrual calendar, users need to provide the following data:

• The first day of their last cycle (select the day and use the "Add" button)
• The average length of their menstrual cycle (adjustable in the "Settings" screen)
• The length of the luteal phase (the default value can be used by most women)

While the application works best for women with regular menstrual cycles, using the average cycle length can still provide a good estimate of when ovulation is likely to occur.