Women gain 25 to 30 pounds when they are pregnant, and they gain weight from the very beginning of their pregnancy, gaining 3 to 6 pounds in the first trimester. Each person is different and there are individual differences. Women in pregnancy, weight gain, in order to store sufficient nutrients for the growth and development of the fetus, to ensure the health of the child, so pregnant women should accept their own weight gain, generally from the time of the just pregnant, the weight began to grow, in the late stages of pregnancy, the fastest rate of weight gain, in the whole pregnancy weight gain of about 25 ~ 30 pounds. It is recommended that pregnant women exercise in moderation to prevent excessive weight gain, so as to avoid conditions such as gestational diabetes. If the weight gain is too slow or the weight gain is too fast, both are unhealthy, it is recommended to go to the hospital in time, under the guidance of the doctor to clarify the cause of the disease, and to carry out targeted treatment.