As far as medical theory is concerned, it is generally impossible to tell the sex from the surface of pregnancy, so there are no specific symptoms of pregnancy with a girl. After pregnancy, most women have early pregnancy reactions such as menopause, nausea, vomiting, fatigue, drowsiness, acidity, frequent urination and breast changes, but the symptoms during pregnancy cannot indicate the sex of the fetus. However, if a sex chromosome genetic disorder is suspected, the sex of the fetus can be determined through an ultrasound or amniocentesis DNA test. Other than that, one cannot identify the sex of the fetus based on non-medical needs, as there are regulations in China that it is illegal to identify the sex of the fetus for non-medical needs. Some folk say that the sex of the fetus can be identified by the manifestation of related symptoms. For example, a fetus with a heart rate higher than 140 beats per minute, or a good appearance after pregnancy, with whiter skin, and sudden mood swings, such as extreme irritability, depression and anger, suggest that the fetus is a girl. However, all such statements lack scientific basis and are generally not recommended to be listened to. In conclusion, there is no comparability between the clinical symptoms and the sex of the fetus, so it is advisable to follow the concept that both boys and girls can be born and welcome the new life positively.