Heartburn is a common problem during pregnancy, especially in the last few weeks (after 36 weeks). It happens because your growing baby puts pressure on your stomach, and pregnancy hormones relax the muscles in your digestive system. This can cause stomach acid to rise into your throat, creating a burning feeling.
If you’re dealing with heartburn in late pregnancy, you’re not alone. Up to 80% of pregnant people experience it. Here’s what you need to know about heartburn at 36 weeks and beyond, plus tips to feel better.
Why Does Heartburn Happen in Late Pregnancy?
1. Hormonal Changes
Pregnancy hormones like progesterone relax the muscles in your digestive system. This can slow down digestion and let stomach acid flow back into your throat.
2. Pressure from Your Baby
As your baby grows, they take up more space in your belly. By 36 weeks, your baby weighs about 6 pounds and is around 18 inches long. This puts pressure on your stomach, making heartburn worse.
3. Symptoms Worsen at Night
Lying down flat can make heartburn worse because it’s easier for stomach acid to flow back up. Eating a big meal before bed can also trigger symptoms.
Symptoms of Heartburn in Late Pregnancy
Heartburn can feel different for everyone, but common symptoms include:
A burning feeling in your chest or throat.
Burping or belching.
A sour or acidic taste in your mouth.
Nausea or vomiting.
Bloating or stomach pain.
How Is Heartburn Diagnosed?
Most of the time, your doctor or midwife can diagnose heartburn based on your symptoms. If they’re concerned it might be something else, they may do further tests. But for most people, heartburn is just uncomfortable and not dangerous.
How to Relieve Heartburn During Pregnancy
Medical Treatments
Some medications are safe to use during pregnancy, but always check with your doctor before taking anything. Here are a few options:
Antacids
Look for antacids with calcium, magnesium, or aluminum. These are safe during pregnancy and help neutralize stomach acid.
Avoid antacids with sodium bicarbonate or bismuth subsalicylate, as these can cause problems during pregnancy.
Alginates
These medications create a gel barrier in your stomach to stop acid from rising. They’re often combined with antacids and are generally safe during pregnancy.
At-Home Tips for Relief
You can also try these lifestyle changes to ease heartburn:
Eat Smaller Meals
Instead of three big meals, eat smaller, more frequent meals throughout the day.
Avoid Trigger Foods
Stay away from greasy, spicy, or acidic foods (like citrus or tomato sauce). Also, avoid caffeine, chocolate, and carbonated drinks.
Don’t Lie Down After Eating
Wait at least 2 to 3 hours after eating before lying down.
Prop Up Your Head While Sleeping
Use pillows to raise your head and shoulders slightly. This can help keep stomach acid down.
Stay Upright After Meals
Sitting or standing after eating can help digestion and reduce heartburn.
Avoid Tight Clothing
Tight clothes can put extra pressure on your stomach, making heartburn worse.
When to Call Your Doctor
Most of the time, heartburn is just uncomfortable and not dangerous. But call your doctor if:
You’re having trouble eating or drinking.
You’re losing weight.
Your symptoms are severe and don’t improve with treatment.
What’s the Outlook for Heartburn in Late Pregnancy?
Heartburn is very common in late pregnancy, but it usually goes away after you give birth. In rare cases, symptoms might linger, which could mean a more permanent issue with your digestive system. If this happens, talk to your doctor.
Frequently Asked Questions
1. What Foods Trigger Heartburn?
Common triggers include greasy, spicy, or acidic foods, as well as caffeine, chocolate, and carbonated drinks.
2. How Common Is Heartburn in Pregnancy?
Heartburn affects about 22% of people in the first trimester, 39% in the second trimester, and up to 72% in the third trimester.
3. Does Exercise Help with Heartburn?
Yes! Light exercise like walking can help with digestion and reduce stress, which may ease heartburn.
The Bottom Line
Heartburn is a common and uncomfortable part of late pregnancy, especially after 36 weeks. While it can disrupt your sleep and daily life, there are ways to manage it. Try lifestyle changes like eating smaller meals and avoiding trigger foods. If those don’t work, talk to your doctor about safe medications.
Remember, heartburn usually goes away after your baby is born. In the meantime, take care of yourself and don’t hesitate to ask for help if you need it