The fetus has not yet reached a fully stable state at 11 weeks of pregnancy. Generally, the fetus is unstable in the first 3 months of pregnancy and is relatively prone to miscarriage or abnormal fetal development. Usually, the fetus will be more stable around 12 weeks of pregnancy. At 11 weeks of pregnancy, the placenta has been initially formed, but at this time the placenta is not yet tightly adhered to the uterine wall, and is susceptible to a combination of its own and external factors, which may affect the baby’s development or miscarriage. Therefore, at 11 weeks of pregnancy, pregnant women should not be careless. However, this period will be more stable compared to the previous one, the fetus is basically formed, the pregnant woman’s early pregnancy reaction is also lighter, she may feel obvious hunger, and it is a period when the fetus is rapidly undergoing growth and development. During this period, it is recommended that pregnant women should not overwork, pay attention to rest, maintain a relaxed mood, choose light and nutritious food, and need to follow the doctor’s advice to take the appropriate amount of folic acid. At the same time to avoid sexual life, avoid daily strenuous activities.