Early pregnancy is generally referred to as early gestation, and gestational periods are generally categorized as early, middle, and late gestation. Early pregnancy is generally from the first week to the end of the thirteenth week. Early pregnancy is counted from the first day of the last menstrual period to the end of the thirteenth week. Symptoms such as menopause, early pregnancy reaction, frequent urination, breast changes, etc. will occur during early pregnancy. This is an important period for embryo formation and fetal organ differentiation, and the embryo is still unstable in the uterine cavity, so it is easily affected by external factors. Early pregnancy is a normal physiological phenomenon for pregnant women, but pregnant women should also undergo regular obstetric examinations. In addition, pregnant women should also develop a healthy lifestyle and maintain a good state of mind, which is conducive to the healthy growth of the fetus.