Heartburn is so common during pregnancy, and it is estimated that heartburn can affect over half of all expecting mothers. Heartburn is characterized by a burning sensation in the upper part of your digestive tract. This is caused by acid going from your stomach into your esophagus. Heartburn is also sometimes referred to as acid indigestion or acid reflux. Heartburn tends to be most common in the third trimester and should disappear after you have your baby. Thankfully, there are a lot of diet and lifestyle changes and over-the-counter medications that can treat heartburn and improve symptoms. This episode explains why you may experience heartburn during your pregnancy and dives the evidence behind all of the treatments for heartburn so you can safely relieve your heartburn when you are pregnant.