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Heartburn at 37 Weeks Pregnant | Pregnancy Power Hour
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Week 37 symptom · mild

Heartburn at 37 Weeks Pregnant

At 37 weeks, heartburn can feel particularly pronounced as your baby's position often creates increased pressure on your stomach and diaphragm.

2 min read

Quick answer

At 37 weeks, heartburn can feel particularly pronounced as your baby's position often creates increased pressure on your stomach and diaphragm.

Also called: pregnancy acid reflux

At 37 weeks pregnant, the sensation of heartburn can feel particularly intense, often due to your baby's growing size creating more pressure on your stomach and diaphragm. This isn't just a fleeting discomfort; it's a common experience for many, with evidence suggesting that heartburn affects a significant percentage of pregnancies, often peaking in the third trimester. Understanding why this happens can bring a sense of clarity and help you navigate these sensations with more ease.

The primary physiological reasons for heartburn in pregnancy are twofold. First, the hormone progesterone, which is vital for maintaining your pregnancy, also has a relaxing effect on the lower esophageal sphincter—the muscle that usually keeps stomach acid from flowing back up into your esophagus. When this muscle is relaxed, it's easier for acid to reflux. Second, as you approach your due date at 37 weeks, your uterus is quite large, and your baby is occupying more space. This physical pressure on your stomach can push its contents upwards, exacerbating the reflux. It's a natural consequence of your body making space for your growing little one, and recognizing this can help you approach it with a calm and grounded perspective.

While this can be a persistent discomfort, especially as you navigate other late-pregnancy sensations, there are practical, evidence-based options to consider. Many people find relief through simple dietary adjustments, like avoiding trigger foods, but sometimes more direct support is helpful. Just as your body navigates changes like Pregnancy Varicose Vein Symptoms at 20 Weeks Pregnant or even Pregnancy Hemorrhoid Symptoms at 40 Weeks Pregnant as you near your due date, heartburn is another common physiological shift that can be addressed thoughtfully. For some, the discomfort can be quite pronounced, impacting sleep and overall well-being. Exploring gentle approaches to support your digestive system can make a real difference in your comfort during these final weeks.

When over-the-counter options are considered, calcium carbonate antacids, like those found in Tums or Rolaids, are often the first line of approach and are considered safe across all trimesters. If these alone aren't providing sufficient relief, your provider might suggest other options. For instance, famotidine, often known by its brand name Pepcid, is considered safe when antacids alone aren't enough. In some situations, especially if symptoms are severe and persistent, omeprazole and other proton pump inhibitors (PPIs) are generally considered safe in the second and third trimesters. The goal is always to find what brings you the most comfort while ensuring safety for both you and your baby. Remember, you get to decide what feels right for your body and your pregnancy experience. Your provider is your best resource for your specific situation, offering personalized guidance and ensuring any chosen approach aligns with your health needs. Understanding these options can empower you to make informed decisions about your well-being as you prepare for birth. Just like managing Pregnancy Varicose Vein Symptoms at 24 Weeks Pregnant might involve supportive garments, managing heartburn involves understanding its causes and exploring appropriate remedies.

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Common questions

Why is heartburn worse at 37 weeks pregnant?+

At 37 weeks, your growing uterus puts more pressure on your stomach. Combined with progesterone relaxing the esophageal sphincter, this often leads to more pronounced heartburn.

Are antacids safe during pregnancy?+

Yes, calcium carbonate antacids (like Tums or Rolaids) are considered a safe first-line option for heartburn across all trimesters of 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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