After a woman's pregnancy, there will be great changes in her physiology: the burden on the internal organs is aggravated, the activities are inconvenient, the fatigue is easy, and the mood is unstable. Proper exercise can help pregnant women relieve back pain, reduce stress, help digestion and slow down post-natal problems. Exercise can also increase the contraction strength of pregnant women's abdominal muscles, enhance the flexibility of the waist and the endurance during childbirth and rapid recovery after childbirth, which is conducive to the health and eugenics of mother and child. In the early stages of pregnancy, that is, between 1 and 3 months of pregnancy, the embryo has just taken root in the uterus. During this period, exercise should be careful to prevent miscarriage, especially pregnant women with a history of habitual abortion. Exercise should be more cautious. During the 4 to 7 months of pregnancy, pregnant women can do some strength training, which is also very beneficial for strengthening muscles and bones. You can use light dumbbells to do proper exercise and maintain normal breathing. The amount of exercise is preferably no more than 130 beats per minute during exercise, and can be restored to the heart rate before exercise within 10 minutes after exercise. At the end of pregnancy, after 8 months of pregnancy, exercise should be taken to avoid premature birth. Therefore, in the early and late stages of pregnancy, you can't do intense, high-volume exercise such as jumping, rotation, and sudden rotation. You can take a walk, play Tai Chi, do exercises, and exercise time should not exceed half an hour. Exercise during pregnancy is not only for the children, but also for themselves, so the following points should be kept in mind: 1. Do not exercise your back weight after 20 weeks of pregnancy. 2. The ligament is vulnerable to injury during pregnancy, so try to avoid lifting, lifting legs and other sports. 3. Heart skipping will be dangerous to your child, so don't exercise in a place that is too hot or too humid, but also pay attention to the increase or decrease of clothes. 4. To drink more water, once you have symptoms of pain, bleeding, dizziness, difficulty breathing, irregular heart rate, and difficulty walking, you must seek medical advice promptly. 5. High-risk pregnancies, especially those with high blood pressure, nephritis, anemia, etc., should check the body before exercise, and choose a simple, easy, and suitable way of activities according to the physical condition.