What happens when pregnancy doesn't vomit?

Most women after pregnancy, due to a thousand-fold increase in estrogen, will cause water and sodium retention, will cause gastrointestinal mucosa to show slight edema, so will show nausea, vomiting, anorexia or clinically show saliva more digestive tract symptoms, belong to the normal early pregnancy reaction. Due to individual differences, each person's early pregnancy reaction is not the same, some people are not sensitive to estrogen, will not show nausea and vomiting, in the clinical normal phenomenon. It is recommended that regular pregnancy to the hospital to do the corresponding check-up, in the early pregnancy, about 50 days pregnant, must do B ultrasound examination, understand whether the pregnancy sac and menstrual stop days are consistent, understand whether the original cardiac pulsation, in order to understand whether fetal development is normal.