If you are less than 32 weeks pregnant, you can prepare the pregnant women's health care manual (big card), the continuous case certificate of pregnant women, the gestational age certificate signed and sealed by the doctor, the B-ultrasound list and other inspection materials and the hospital's electronic inspection report when you fly on China Eastern Airlines. Moreover, you need to apply on China Eastern Airlines official website or APP in advance, and you must also bring relevant materials when you take the flight.