The body undergoes many changes after pregnancy, and chest tightness and shortness of breath usually occur more often in the middle and late stages of pregnancy. Early pregnancy chest tightness, shortness of breath is recommended to rule out the possibility of heart disease, you can go to the hospital to do an electrocardiogram, cardiac ultrasound to rule out whether it is caused by disease. If the pregnant woman’s weight increases rapidly plus pregnancy with the increase in uterine volume can also lead to chest tightness, it is recommended that you should rest more, try to relax to avoid excessive tension will cause respiratory effort, pay attention to regulating emotions and usually pay attention to regular gynecological examination. Serious chest tightness, shortness of breath, it is best to go to the hospital for examination, in addition to the need to exclude heart disease, but also need to exclude whether it is caused by lung disease such as pneumonia, pulmonary embolism and other diseases. It is recommended that pregnant women do not blindly use drugs at home, because it is a special group of people would be best to use drugs under the guidance of a professional doctor to avoid harm to the fetus and the body, usually try to pay more attention to rest, relaxation, do not picky about food, do not diet, pay attention to nutritional matching, if necessary, can be treated with oxygen.