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Heartburn at 23 Weeks Pregnant | Pregnancy Power Hour
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Week 23 symptom · mild

Heartburn at 23 Weeks Pregnant

At 23 weeks pregnant, heartburn often emerges as your growing uterus begins its upward push, a common and manageable experience.

2 min read

Quick answer

At 23 weeks pregnant, heartburn often emerges as your growing uterus begins its upward push, a common and manageable experience.

Also called: pregnancy acid reflux

At 23 weeks pregnant, the emergence of heartburn is a common experience, often signaling the gentle upward shift of your growing uterus and the hormonal changes at play. This sensation, sometimes described as a burning feeling behind your breastbone, can be a new development for many first-time parents during this stage of pregnancy. It's a clear example of how your body is adapting to support your growing baby, and understanding these shifts can bring a sense of calm and clarity.

The primary reasons for this discomfort at 23 weeks are twofold: the hormone progesterone, which is essential for pregnancy, relaxes the lower esophageal sphincter, the valve that keeps stomach acid down. Simultaneously, your uterus is expanding and beginning to exert pressure on your stomach. This combination means that stomach acid can more easily travel back up into your esophagus, leading to that familiar burning sensation. You might notice it more acutely after meals or, as is common for many, when you lie down flat, which allows gravity to work against you.

Navigating these new physical sensations is a significant part of early pregnancy. Just as you might be mindful of other common experiences like Yeast Infection Symptoms in Pregnancy at 19 Weeks Pregnant, understanding the nuances of heartburn at this stage allows you to make informed decisions about your comfort. There are various gentle, evidence-based options to explore that can help manage these symptoms, allowing you to feel more grounded and confident as your pregnancy progresses. Remember, you get to decide what feels right for your body and your comfort.

While heartburn is often mild at this stage, it's a good time to become familiar with what helps. Exploring different approaches for comfort, whether it's for heartburn or other common pregnancy experiences such as Yeast Infection Symptoms in Pregnancy at 18 Weeks Pregnant, can empower you. For some, the thought of managing these new symptoms can feel overwhelming, but with clear information and a collaborative approach, it becomes much more navigable. Your care provider is your best resource for your specific situation, and discussing your symptoms with them ensures you receive personalized guidance. Just as you might explore options for managing heartburn, exploring different approaches for other common pregnancy experiences, such as Yeast Infection Symptoms in Pregnancy at 17 Weeks Pregnant, can bring a sense of calm and clarity.

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Common questions

What causes heartburn at 23 weeks?+

Hormonal changes relax the esophageal sphincter, and your growing uterus starts to put pressure on your stomach, leading to reflux.

Are antacids safe for pregnancy?+

Yes, calcium carbonate antacids like Tums or Rolaids are considered a safe first-line option across all trimesters.

What if antacids don't work?+

Famotidine (Pepcid) is considered safe when antacids aren't enough; discuss this option with your provider.

Does lying flat make it worse?+

Yes, elevating the head of your bed by 6-8 inches can help reduce nighttime heartburn symptoms.

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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