10 Causes of Heartburn

5. Pregnancy

Pregnancy alters the hormone balance in a woman's body, including boosting levels of progesterone. Progesterone weakens the muscle valve that prevents stomach acid coming back into the esophagus. As the pregnancy progresses, the growing baby places more pressure on the stomach and esophagus, forcing even more gastric bile into the esophagus. Women become more prone to indigestion as well as heartburn during pregnancy, and both of these tend to worsen as her due date approaches. Over-the-counter antacid tablets tend to work well for pregnant women, as well as plenty of dairy products, including yogurt and soft cheeses. Before taking medication, however, pregnant women should consult with their obstetrician.