Pregnant women can have ECG during pregnancy. Electrocardiogram is mainly to record the heart beat by means of electric wave, which has very little effect on the body and will not affect the fetus, does not affect the normal development of the fetus, there is no need to worry too much. During pregnancy, especially in early pregnancy, pregnant women need to avoid exposure to X-rays, such as radiography, CT examination, etc., because these examinations contain more X-rays, and X-ray irradiation is likely to have an impact on the development of the fetus, resulting in fetal development deformities, etc., and exposure to X-rays during the early stages of pregnancy is also likely to lead to miscarriage. General pregnant women in the initial examination after pregnancy and late pregnancy examination, need to do electrocardiogram examination, the doctor needs to grasp the pregnant woman’s cardiac function, because the time of delivery, especially normal delivery, the pregnant woman’s body wear and tear is relatively large, the cardiac function of the requirements of the higher, if there is abnormal cardiac function need to be timely symptomatic treatment, to avoid accidents.