Heartburn tends to be most prevalent in the later stages of pregnancy, especially after 36 weeks. This occurs due to the increased pressure from the growing baby on your stomach as you approach the final weeks of pregnancy.
Heartburn is a common discomfort during pregnancy, impacting up to 80% of expectant individuals. Also known as acid reflux or indigestion, heartburn in pregnancy results from hormonal fluctuations and the added pressure from the developing fetus pressing on your stomach.
It’s most frequent in the third trimester and tends to be particularly bothersome around 36 weeks, when your baby reaches their largest size before birth.
If you’re struggling with heartburn late in pregnancy, you’re not alone. Here’s what heartburn looks like at 36 weeks and beyond, and how you can find relief.
What happens when you have heartburn in the third trimester of pregnancy?
Pregnancy hormones can slow down digestion and relax the muscles of the digestive system, causing food and stomach acids to flow back up into your esophagus. Additionally, the growing baby and uterus pressing against your stomach can contribute to heartburn symptoms.
These symptoms may intensify as your pregnancy progresses, especially around 36 weeks. At this stage, your baby is about 6 pounds, around 18 inches long, and will continue to grow rapidly in the weeks ahead. By 40 weeks, your baby may weigh between 7 to 8 pounds and measure about 20 inches long. That’s a lot of pressure on your stomach and digestive system!
Heartburn during late pregnancy can be extremely uncomfortable, often worsening at night when you’re trying to rest. This is because lying down flat makes it easier for stomach acids to rise up into your esophagus. Symptoms may also become more noticeable after eating.
Common symptoms of heartburn in late pregnancy include:
- A burning or painful sensation in your throat
- Frequent burping or belching
- A sour or acidic taste in your mouth, often with remnants of recently consumed food
- Nausea or vomiting
- Bloating or stomach discomfort
How is heartburn diagnosed in the third trimester?
Typically, your doctor or midwife can diagnose heartburn based on the symptoms you describe. If they suspect another condition may be causing your symptoms, further examination may be required.
For the most part, heartburn is an inconvenience rather than a serious issue. However, if it’s making it difficult to eat, keep food down, or if you’re losing weight, it’s important to reach out to your healthcare provider for guidance.
How to manage heartburn in the third trimester of pregnancy
Heartburn can make eating, sleeping, and working uncomfortable, but there are effective treatments to help you feel more like yourself.
Medical treatments
During pregnancy, you need to be cautious with medications. While some heartburn treatments are not recommended, there are options that are considered safe, but you should consult your doctor or midwife before using any medication.
Here are some safe options for treating heartburn during pregnancy:
- Antacids: Antacids containing calcium, magnesium, or aluminum are generally safe. They help neutralize stomach acids.
- Alginates: These medications form a gel barrier on top of the stomach’s contents, preventing stomach acids from rising. Many alginates are safe during pregnancy, but always check with a healthcare provider before starting any treatment.
Home remedies to alleviate heartburn during pregnancy
You can often manage heartburn with some adjustments to your daily habits and sleeping position:
- Eat smaller, more frequent meals
- Avoid eating within three hours before bedtime
- Stay upright after eating
- Prop up your head and shoulders while sleeping
- Stick to bland, easily digestible foods
- Avoid alcohol and caffeine
- Avoid smoking
What’s the outlook for someone with heartburn at 36 weeks pregnant?
Although heartburn can interfere with sleep and comfort, it rarely leads to serious complications. The primary concern is when it makes eating or drinking difficult, which could lead to dehydration or inadequate calorie intake. If that’s happening, reach out to your healthcare provider.
Most of the time, heartburn symptoms will improve after childbirth, though some may persist. If your symptoms continue, consider consulting your doctor or a GI specialist, as heartburn post-pregnancy could signal a more persistent issue.
Common Questions
What foods trigger heartburn during late pregnancy? Foods that can trigger heartburn include greasy or fried items, acidic foods like fruits and tomato-based dishes, fatty foods, chocolate, spicy dishes, and foods with garlic and onions.
How common is heartburn in pregnancy? Heartburn is most common in the third trimester, but it can occur at any point during pregnancy. Research shows that approximately 22% of people experience it in the first trimester, 39% in the second, and up to 72% in the third trimester.
Does exercise help with heartburn? Yes! Activities like walking, which keep you upright, can aid digestion and reduce stress, both of which help manage heartburn.