By eHow Health Editor
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If you're pregnant, then you might also expect to treat an occasional bout of heartburn over the next few months. Why does heartburn occur when you're pregnant? You can blame it on the hormone progesterone. Higher progesterone levels sometimes cause the lower muscle to relax, allowing stomach acid to make a return trip through the esophagus. Obviously, most medications are to be avoided while you're pregnant. However, there are some natural, safe and effective ways to treat heartburn when you're pregnant.
eHow Health Editor