If you are pregnant for eight weeks and vomiting a lot, you should identify the cause of the illness and make sure whether it is a severe vomiting or other illnesses and then treat it. Pregnancy vomiting is generally referred to as early pregnancy pregnant women appear severe persistent nausea, vomiting, if the persistent vomiting is prone to induce dehydration, ketosis or even acidosis, serious cases need to be hospitalized in a timely manner. The severe cases need to be hospitalized in time. The severe vomiting in pregnancy needs to be treated in time and focus on psychological supportive treatment, try to avoid contact with odors and foods that may induce vomiting. Avoid fasting in the morning and encourage small, frequent meals. Dehydration and electrolyte disorders need to be corrected, according to the actual situation of intravenous rehydration, supplementation of vitamin B1, vitamin B6, vitamin C, etc., and potassium supplementation therapy if necessary. Antiemetic therapy with vitamin B6 or vitamin B6-doxilamine complex. Other diseases that may cause vomiting, such as gastrointestinal infections and cholecystitis. Generally, in addition to vomiting, there may be abdominal pain, consumption of unclean food and drink, etc., which need to be targeted under the guidance of the doctor. If you feel unwell during pregnancy, you should consult a doctor to identify the cause of the illness.