Chest tightness, nausea is not necessarily pregnant, can not rely solely on a symptom to determine pregnancy, chest tightness, nausea may be a normal physiological phenomenon, but may also be coronary heart disease, gastritis and other pathological factors, it is recommended that timely medical examination. If there is emotional tension, stress, late night fatigue, improper diet and other physiological phenomena will also appear chest tightness, nausea, so the general judgment of pregnancy can not be based on chest tightness, nausea to determine, it is recommended to go to the hospital for urine, blood, ultrasound and other tests to determine whether the pregnancy. In addition, if the patient has a history of coronary heart disease, coronary artery ischemia and hypoxia will appear chest discomfort, nausea and vomiting and other symptoms; if the patient suffers from gastritis, the common symptoms of epigastric discomfort, bloating, nausea in the chest, vomiting and so on. Therefore, the occurrence of chest tightness, nausea, after excluding physiological factors should be timely consultation, under the guidance of the doctor for further examination, a clear diagnosis of pregnancy or other diseases may be.