Heartburn During Pregnancy: Causes, Relief, and What to Avoid

When you're pregnant, your body changes in ways you never expected—and heartburn during pregnancy, a burning sensation in the chest caused by stomach acid rising into the esophagus. Also known as pregnancy acid reflux, it affects up to 80% of expectant mothers, especially in the second and third trimesters. It’s not just discomfort—it can make eating, sleeping, and even breathing feel like a chore. And while it’s common, it’s not something you just have to live with.

The main culprits? Hormones. Progesterone relaxes the valve between your stomach and esophagus, letting acid sneak up. At the same time, your growing uterus pushes your stomach upward, squeezing acid out like toothpaste from a tube. That’s why you feel it more after meals, when lying down, or bending over. It’s not your diet alone—it’s your changing anatomy. But what you eat still matters. Spicy food, citrus, coffee, chocolate, and fatty meals can make it worse. So can eating large portions or lying down too soon after eating. You don’t need to give up everything, but small shifts—like eating five tiny meals instead of three big ones—can cut the burning in half.

Not all remedies are safe. Some over-the-counter antacids contain aluminum or aspirin, which aren’t recommended during pregnancy. Calcium-based antacids like Tums are generally fine, but check with your provider first. Baking soda? Avoid it—it can cause fluid retention and electrolyte issues. Elevating your head while sleeping helps more than you think. Try two pillows or a wedge under your mattress. And skip tight clothes—they add pressure where you don’t need it. If lifestyle tweaks don’t help, your doctor might suggest safe, pregnancy-approved medications like famotidine or ranitidine (if still available). The goal isn’t to eliminate every symptom—it’s to manage it so you can eat, rest, and enjoy your pregnancy without constant discomfort.

What you’ll find below are real, practical posts from people who’ve been there. From natural remedies that actually work, to which medications are safe to take, to what foods to keep on your plate—and which to toss. No fluff. No guesswork. Just clear, tested advice to help you get through this phase with less pain and more peace.