The so-called pregnancy reaction usually refers to the manifestation of significant nausea, vomiting and loss of appetite caused by the stimulation of HCG hormone in a woman’s body after pregnancy. If the pregnancy reaction is simply strong but does not affect the normal nutritional intake, it can often be treated without any treatment. However, if a woman’s pregnancy reaction is so strong that it affects her nutritional intake, resulting in the appearance of urinary ketone bodies, then hospitalization with nutritional fluids for symptomatic support treatment is often necessary. If necessary, vitamin B6 can be administered intramuscularly to counteract antiemesis. In addition, this type of woman may have a strong prolonged pregnancy reaction, which may lead to preterm or spontaneous miscarriage, which is why intervention is needed.