The Chinese baby calendar is a traditional method of predicting the sex of a baby based on the lunar calendar. It is believed that the sex of a baby is determined by the date of conception, and the Chinese baby calendar provides a table that lists the days of the month that are considered to be favorable for conceiving a boy or a girl.
The Chinese baby calendar has been used for centuries, and it is still popular today, especially in China and other Asian countries. While there is no scientific evidence to support the accuracy of the calendar, many people believe that it can be a helpful tool for planning the conception of a child.