Pregnancy vomiting appears around 4 weeks after menopause and ends around 12 weeks of pregnancy, but it varies from person to person, the physical condition of each pregnant woman is different, some pregnant women have no vomiting reaction during the whole pregnancy, some have slight vomiting. You can take oral vitamin B6 and stomachic tablets, eat less and eat more, rest more during the medication period, do not exercise strenuously, pay attention to a light diet, do not eat spicy and stimulating, cold food, eat more fresh vegetables and fruits, and keep a happy mood, all of which can reduce the early pregnancy reaction. If the vomiting is very strong, thinning and weak, consider severe pregnancy vomiting, promptly consult the hospital for blood and urine tests, electrolytes and blood biochemistry to avoid water-electrolyte disorders, which may affect the fetal development.