At 14 weeks of pregnancy, the reproductive organs of the fetus are basically fully developed. However, since every fetus grows and develops at different speeds, the reproductive organs of a fetus that develops later may not be fully developed. Therefore, whether the reproductive organs of the fetus are fully developed at 14 weeks of pregnancy varies from person to person. Clinically, the reproductive organs of the fetus will usually start to develop at 9-12 weeks of pregnancy, but the reproductive organs may need to wait until about 16 weeks to fully develop. For those who want to determine the sex of the fetus through the external genitalia, it is recommended to go for an examination at around 16 weeks of pregnancy, but our laws prohibit the identification of the sex of the fetus for non-medical needs. At 14 weeks of pregnancy, in addition to the basic development of the reproductive organs, the various organs of the fetus are also beginning to develop, and more attention needs to be paid to avoiding exposure to harmful substances, so as not to affect the development of the fetus.