Because of pregnancy, the heart load is aggravated, and myocardial ischemia will occur, which will cause pregnancy heart disease in severe cases. Myocardial ischemia during pregnancy can cause abnormal ECG. Myocardial ischemia in pregnant women, in the process of fetal growth, oxygen demand will also increase, which will increase your heart burden, especially in the late stage. Fetal development may be affected, so ultrasound examination and prenatal examination should be done regularly. It is forbidden to use drugs privately, and you must consult a professional doctor in detail. Only a prescription prescribed by a professional doctor will not harm you and your baby. Usually pay attention to rest and exercise moderately. Eat a balanced diet and eat more fresh vegetables.