Some women experience a burning sensation in the stomach during the first trimester, which is caused by excessive secretion of gastric acid and slowed gastrointestinal motility due to elevated chorionic gonadotropin in the body. It is normal to have a burning sensation in the stomach along with an increase in acidity in the mouth, which will gradually disappear after 12 weeks of pregnancy as the number of weeks increases. In this case, you can eat more cookies with soda, steamed buns with soda powder or drink milk or eat pickles to relieve the burning in the stomach. If the secretion of stomach acid is particularly high and affects eating, you can apply sodium bicarbonate tablets under the guidance of your doctor. Pay attention to nutrition in early pregnancy, apply multivitamin tablets and folic acid tablets under doctor’s guidance, which can effectively avoid neural tube development malformation in the child, and make maternity checkups on time.