Flying is not recommended in the seventh month of pregnancy because the sensitivity of the uterus increases after entering late pregnancy and is easily stimulated during high-altitude flights, which may result in signs of labor. Pregnant women with pre-eclampsia miscarriage, gestational hypertension, gestational diabetes, and gestational thyroid function problems are not recommended to fly in order to avoid putting the pregnant woman and her fetus in a dangerous state. At present, China’s airlines stipulate that pregnant women who are more than 8 months pregnant are not allowed to take the plane. If a pregnant woman is 7 months pregnant, her body condition is normal and she has a health certificate provided by a doctor before she can take the plane. However, it depends on the personal condition of the pregnant woman, the doctor’s assessment and the airline’s requirements. Some airlines do not allow pregnant women to fly during late pregnancy.