It is normal to experience nausea when you are newly pregnant. Some people are more sensitive to irritating smells and foods during pregnancy and are prone to more severe early pregnancy reactions, even nausea, vomiting and inability to eat. In such cases, you should avoid contact with irritating smells and foods, try to avoid fasting in the morning, and eat as few meals as possible. If vomiting is severe, urinalysis and inorganic ions should be tested to see if there are ketone bodies and electrolyte disorders, and if there are abnormalities, hospitalization should be promptly given rehydration treatment. Vitamin C, vitamin B1 and vitamin B6 should also be given as supplements, which can effectively reduce pregnancy reactions. If necessary, supplemental amino acids and fat milk should be given to ensure that the fetus can develop normally during pregnancy.