Prenatal education during pregnancy is indeed important, but it should not be confined to the pregnancy period alone. It is generally recommended to start prenatal education 2-3 months before conception. The combination of sperm and egg forms a fertilized egg, which then germinates into a new life. During intercourse, a man can ejaculate 2-5 milliliters of semen each time, containing 300 million to 500 million mature sperm. Since the development of sperm takes about two months, in order to ensure the normal development and maturation of the father's sperm, preparations must begin three months before conception to create a good developmental foundation for the fetus. Therefore, prenatal education should start three months before conception. Some also believe that prenatal education can be extended further in terms of content and timing, including spouse selection, choosing the best marriage and childbearing age, etc.