Early pregnancy is prone to the symptoms of vomiting, if you usually eat less, but vomit more often, in the vomiting will be easy to vomit out the bile, bile in the mouth has a certain degree of residue, so there will be a bitter mouth, pregnant women do not have to worry too much, this symptom will be with the increase in pregnancy and slowly disappear. In addition, the bitter mouth may also have a relationship with the daily diet, it is recommended to drink more water during pregnancy, eat more fresh fruits and vegetables, try not to eat fried food and spicy, stimulating food. Pay attention to adjusting the mind, do not be too nervous, try to relax and keep the mood happy, appropriate exercise, do not overwork, also pay attention to rest. During pregnancy, you must pay attention to oral hygiene, insist on brushing your teeth in the morning and evening on time, and rinse your mouth in time after eating to avoid bacteria from growing in the mouth.