The Chinese gender calendar is a traditional method used to predict the gender of a baby. It is based on the Chinese lunar calendar, and takes into account the age of the mother and the month of conception. The calendar is said to be over 700 years old, and is still used by many people in China and other parts of Asia.
According to the calendar, the gender of a baby is determined by the combination of the mother’s age and the month of conception. For example, a woman who is 25 years old and conceives in the month of January is said to be more likely to have a boy. Conversely, a woman who is 26 years old and conceives in the month of July is said to be more likely to have a girl.