Heartburn is a feeling or pain in the stomach, or between the breasts. It happens because the growing baby crowds the mother's stomach and pushes it higher than usual. 

It helps the woman to: 

• Eat smaller meals more often, and eat foods and drink liquids separately. 
• Avoid spicy or greasy foods, drinking coffee, or smoking cigarettes.
• Regularly eat papaya or pineapple, which have enzymes (special chemicals that help the stomach to digest food).
• Keep her head higher than her stomach when lying down or sleeping. This will keep the stomach acids in the stomach and out of the chest. 
• Calm the acids in the stomach by drinking milk or taking a low-salt antacid (stomach-calming liquid or tablet) that contains no aspirin.