Normally, a gestational sac of 8*7mm refers to the size of the gestational sac in terms of length and width, and this size of gestational sac indicates that a woman’s pregnancy cycle is around one month. During pregnancy, the size of the gestational sac can reflect the growth and development of the fetus, and the change of the gestational sac can provide a reference standard for the pregnancy status of pregnant women. If the size of the gestational sac does not match with the pregnancy cycle, it is recommended to pay attention to it, and to clarify the cause through detailed examination and timely intervention and treatment. During pregnancy, women should pay attention to nutritional supplementation to provide a good environment for the growth and development of the fetus, and should eat more food rich in protein, such as eggs, pork lean meat, soy products, milk, etc.. It is also necessary to properly supplement shrimp, fish, pork liver, oats, walnuts, peanuts and other foods, eat more fresh vegetables and fruits, to ensure that the intake of food nutritionally balanced, to avoid a single nutrition. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, pay attention to rest, at the same time should be relaxed, to avoid nervousness, anxiety, there is any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.