# Heartburn at 24 Weeks Pregnant

Source: https://www.pregnancypowerhour.com/pregnancy/symptoms/heartburn-week-24
Last updated: 2026-07-01

> At 24 weeks pregnant, heartburn often emerges as your growing uterus creates upward pressure on your stomach, compounding hormonal effects.

At 24 weeks pregnant, the emergence of heartburn often signals your growing uterus beginning to exert upward pressure on your stomach, adding to the hormonal shifts already at play. This specific stage of mid-pregnancy can bring a new dimension to digestive comfort, as the physical space within your abdomen starts to become more limited. Many parents find themselves experiencing this sensation, sometimes described as a burning feeling in the chest or throat, as their body adapts to the significant changes of the second trimester. It's a common experience, affecting a large percentage of pregnancies, and it tends to become more noticeable as you move further into your pregnancy, often peaking in the third trimester.

The primary culprits behind pregnancy-related heartburn are twofold. Firstly, the hormone progesterone, which is vital for maintaining your pregnancy, also has a relaxing effect on smooth muscles throughout your body. This includes the lower esophageal sphincter, a valve that normally prevents stomach acid from flowing back into the esophagus. When this sphincter is relaxed, it's easier for acid to escape. Secondly, at 24 weeks, your uterus has grown considerably and is now pushing upwards, putting direct pressure on your stomach. This physical compression, combined with the relaxed sphincter, creates an environment where stomach acid is more likely to reflux, leading to that uncomfortable burning sensation. Understanding these mechanisms can bring a sense of clarity and help you make informed decisions about managing your comfort.

Navigating these new sensations can feel overwhelming, but there are several evidence-based approaches you can explore to find relief. For many, simple over-the-counter options are a good starting point. Calcium carbonate antacids, such as Tums or Rolaids, are widely considered safe for use across all trimesters and can provide quick relief by neutralizing stomach acid. If antacids alone aren't quite enough to ease your discomfort, your provider might suggest considering famotidine (commonly known as Pepcid), which is also considered safe. For more persistent symptoms, omeprazole and other proton pump inhibitors (PPIs) are generally considered safe options during the second and third trimesters. Always have a conversation with your care provider to determine the best course of action for your specific situation.

Beyond medication, some practical adjustments can make a significant difference, especially since heartburn can often feel worse when you're lying flat. Elevating the head of your bed by 6 to 8 inches can help gravity keep stomach contents where they belong, reducing nighttime symptoms and allowing for more restful sleep. Paying attention to your eating patterns, such as avoiding large meals close to bedtime, can also be a gentle way to support your digestive system. Just as understanding changes in earlier weeks, such as [Yeast Infection Symptoms in Pregnancy at 13 Weeks Pregnant](/pregnancy/symptoms/yeast-infection-symptoms-week-13), [Yeast Infection Symptoms in Pregnancy at 14 Weeks Pregnant](/pregnancy/symptoms/yeast-infection-symptoms-week-14), and [Yeast Infection Symptoms in Pregnancy at 15 Weeks Pregnant](/pregnancy/symptoms/yeast-infection-symptoms-week-15), brings clarity, knowing the mechanisms behind heartburn now can help you feel more in control. Your provider is your best resource for personalized guidance and to ensure these approaches are right for you.