Fetal dream refers to the birth of a baby and is a dream related to pregnancy. People divide fetal dreams into four categories: animals, plants, fruits and vegetables, nature, and valuables such as gold, silver and jewelry. Every dream can simultaneously predict the birth of a boy or a girl. Prospective parents can refer to it, but there is no systematic scientific theory to demonstrate the accuracy of fetal dreams. Dream is not only a physiological phenomenon, but also a psychological phenomenon. What kind of dreams are related to the dreamer's desire, emotional state and recent stimulating events. Fetal dreams are the continuation of some psychological activities of expectant mothers during sleep, or express some wishes they want to realize.