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Heartburn at 38 Weeks Pregnant | Pregnancy Power Hour
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Week 38 symptom · mild

Heartburn at 38 Weeks Pregnant

At 38 weeks pregnant, heartburn often intensifies as your baby settles deeper, creating peak pressure on your stomach and diaphragm.

2 min read

Quick answer

At 38 weeks pregnant, heartburn often intensifies as your baby settles deeper, creating peak pressure on your stomach and diaphragm.

Also called: pregnancy acid reflux

At 38 weeks pregnant, the familiar discomfort of heartburn often intensifies as your baby settles deeper, creating more pressure on your stomach and diaphragm. This late stage of pregnancy can bring unique challenges, and heartburn, sometimes called pregnancy acid reflux, is a common experience, affecting 40–80% of pregnancies, with symptoms often peaking in the third trimester.

This sensation of burning in your chest or throat is a result of a couple of key physiological changes. Firstly, the hormone progesterone, which is essential for maintaining your pregnancy, also has a relaxing effect on the lower esophageal sphincter—the valve that separates your esophagus from your stomach. When this valve is relaxed, stomach acid can more easily travel back up into the esophagus. Compounding this, at 38 weeks, your growing uterus is taking up significant space, directly pressing against your stomach. This physical pressure, combined with the relaxed sphincter, creates a perfect storm for increased heartburn symptoms.

Understanding what's happening within your body can bring a sense of clarity and calm. While it can be uncomfortable, this heightened heartburn is a very normal part of late pregnancy, a direct result of your baby's growth and position as you approach your due date. Many expectant parents find that these symptoms can be quite disruptive, especially at night. Just as you might notice increased pressure leading to conditions like Pregnancy Hemorrhoid Symptoms at 39 Weeks Pregnant or Pregnancy Hemorrhoid Symptoms at 40 Weeks Pregnant, the growing uterus also directly impacts your digestive system. It's a reminder of the incredible work your body is doing to nurture your little one.

There are several evidence-based approaches you can explore to find some ease. Simple dietary adjustments, like eating smaller, more frequent meals and avoiding trigger foods, can make a difference. For some, elevating the head of the bed by 6–8 inches can be particularly helpful for reducing nighttime symptoms. Over-the-counter options are also available and can provide relief. Remember, every body is unique, and what works for one person might be different for another. Your care provider is your best resource for your specific situation and can help you make informed decisions about managing your symptoms. It's all about finding what brings you the most comfort during these final weeks, allowing you to focus on preparing for your baby's arrival rather than battling discomfort.

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Common questions

Why is my heartburn worse at 38 weeks?+

At 38 weeks, your baby's size and position create significant pressure on your stomach. This, combined with progesterone relaxing the esophageal sphincter, intensifies heartburn.

Are antacids safe for heartburn at 38 weeks?+

Yes, calcium carbonate antacids (Tums, Rolaids) are considered safe across all trimesters and are a first-line treatment for heartburn during pregnancy.

Brittany Nance

“Pregnancy is under-supported at every week. This is the kind of clear, calm guidance I give my one-on-one clients — and the questions worth taking back to your provider.”

Brittany Nance · Pregnancy Wellness Consultant · full-spectrum doula

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Written by Brittany Nance, Pregnancy Wellness Consultant· BADT Full Spectrum Doula · Founder, Pregnancy Power Hour
Last reviewed July 1, 2026

This is evidence-informed education from a birth-doula perspective, not medical advice. Always discuss your individual situation with your prenatal care provider.

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