Pregnancy is a special time that every woman looks forward to. They will constantly pay attention to the changes in their bodies and look for various clues to guess the gender of the fetus. One of the common myths is that pregnant women who are pregnant with a boy will feel their stomach is hard when they wake up in the morning. This article will analyze the authenticity of this statement from a professional perspective. First of all, it should be clear that a pregnant woman\’s belly will undergo various changes during pregnancy, which is caused by the expansion of the uterus and the growth of the fetus. Pregnant women may feel a hard stomach when they wake up in the morning due to changes in the position and shape of the uterus. In early pregnancy, the uterus gradually enlarges and rises outside the pelvic cavity to provide enough space for the fetus to grow. Pregnant women may experience a hardening of their tummy as the uterus rises up into the abdomen. This feeling is usually more noticeable when you get up in the morning, when your bladder is full, and the uterus pressing on your bladder can make your belly tighter. What are the benefits of walking during pregnancy for the fetus? In addition, the uterine muscles of pregnant women are also constantly contracting and relaxing during pregnancy in order to adapt to the growth and movement of the fetus. Movement of this muscle may also cause a pregnant woman to feel a firm belly. This feeling may be more obvious in the morning, because pregnant women rest during sleep and their muscles relax for a longer time. When getting up in the morning, the muscles start to move, so the feeling is more obvious. However, this feeling is not directly related to the gender of the fetus. The gender of the fetus is determined by the parents’ genes and has no direct relationship with the physical condition of the pregnant woman. The feeling of a hardened belly is an individual experience of pregnant women. Everyone\’s experience may be different, and it may not be able to accurately predict the gender of the fetus. In addition to the feeling of a hard belly, there are other ways pregnant women can guess the sex of their baby, such as through ultrasounds, blood tests and genetic testing. These methods have a certain degree of accuracy and can more reliably determine the gender of the fetus. To sum up, there is no scientific basis for the statement that pregnant women who are pregnant with a boy have a hard stomach when they wake up in the morning. The feeling of a hardened belly is caused by changes in the position and shape of the uterus and the movement of pregnant women\’s muscles, and is not directly related to the gender of the fetus. If pregnant women want to know the gender of their fetus accurately, it is recommended to undergo a professional examination. CCTV recommends over 500 excellent documentaries with high scores. Children will become addicted to self-discipline after watching them. References: Cunningham, F. G., Leveno, K. J., Bloom, S. L., Hauth, J. C., Rouse, D. J., & Spong, C. Y. (Eds.) . (2013). Williams obstetrics. McGraw-Hill Education. Gorrie, T. M., Hadden, D. R., & Connell, J. M. (1999). Sex of previous children and serum concentrations of human chorionic gonadotrophin, alpha-fetoprotein, and unconjugated oestriol in pregnancies complicated by pre-eclampsia. BJOG: An International Journal of Obstetrics & Gynaecology, 106(4), 314-317.