Although prospective parents’ biggest wish is to have a child that is healthy, many also express their desire to have either a boy or a girl. Whether you are having your first child, or have already had children, many couples would like to have a child of a specific sex. While there are many old wives’ tales that claim that the food you eat, positioning during sex, and the side of the bed that you sleep on can increase your chances of having a boy or a girl, these approaches have no scientific basis. Chinese fertility calendars use the month of conception, paired with the age of the mother at the time of the birth to determine if the couple will have a boy or a girl. However, old wives’ tales and Chinese pregnancy calendars are not reliable ways to choose or predict the sex of your baby. If you are serious about increasing your chances of having a child of a certain sex, these sperm sorting treatments are more effective.