No pregnancy vomiting at 8 weeks of pregnancy can be normal or abnormal. Most women experience nausea and vomiting in the early stages of pregnancy, while some have only nausea without any obvious symptoms of vomiting. A few women have neither nausea nor vomiting, which is normal as long as the embryo is developing normally. However, if nausea and vomiting have occurred in the past, and the early pregnancy reaction suddenly disappears, it is necessary to be vigilant about embryonic arrest, and it is recommended to have an ultrasound examination in the hospital. Individual differences in early pregnancy reaction during pregnancy, and the body’s blood HCG levels, changes in thyroid function, anxiety, mental overstress, economic conditions and other factors, once the pregnancy reaction should avoid contact with irritating odors, a small number of meals, avoid a large number of liquid diet, pregnant women’s families should also provide psychological guidance and support.