Mid pregnancy contractions are a normal phenomenon, generally after 16 weeks pregnant women will have contractions, as long as they are not frequent, do not worry, pay attention to rest, do not strenuous exercise, do not be anxious, angry, etc., can ease the contraction symptoms. However, if the contractions are frequent, abdominal pain, bleeding and other symptoms are not normal, consider miscarriage aura, it is best to go to the hospital in time for ultrasound examination to see the development of the baby. If the baby is developing normally, it is best to use magnesium sulfate to suppress contractions and prevent miscarriage under the guidance of a doctor in a timely manner. In the middle of pregnancy it is best to strengthen the diet nutrition, such as you can eat more lean meat, eggs, while it is recommended to eat more bananas, apples, etc. to prevent constipation during pregnancy, can prevent miscarriage.