That hot, burning feeling rising from your stomach to your throat is one of the most common pregnancy complaints — and one of the most uncomfortable, especially at night. The good news: it is usually harmless, very normal, and there are plenty of gentle ways to feel better.
Why does heartburn happen in pregnancy?
Heartburn (sometimes called acid reflux) is when stomach acid flows back up into the tube that carries food to your stomach. Pregnancy makes this more likely for two reasons:
- Hormones. The hormone progesterone relaxes muscles all over your body to support your pregnancy. That includes the little valve at the top of your stomach, so it does not close as tightly and acid can slip back up.
- Your growing baby. As your uterus grows, it pushes up on your stomach, leaving less room and nudging acid upward — which is why heartburn often gets worse in the third trimester.
This is completely normal and does not mean anything is wrong. It tends to ease soon after birth.
What does pregnancy heartburn feel like?
Most people notice:
- A burning feeling in the chest or throat, often after eating or when lying down.
- A sour or bitter taste in the mouth.
- A feeling that food is coming back up, or mild nausea.
- Discomfort that is worse at night or when bending over.
It can be mild or quite intense. If the burning is severe, comes with a bad headache, or you have pain under your ribs on the right side, mention it to your provider — these can occasionally signal something that needs checking.
What foods help — and which to avoid?
Food is the easiest place to start. There is no single list that works for everyone, so pay attention to your own triggers. Many people find these patterns helpful:
| Often soothing | Common triggers |
|---|---|
| Smaller, frequent meals | Large, heavy meals |
| Bland, low-fat foods | Fried and fatty foods |
| Milk, yogurt | Spicy foods |
| Bananas, oatmeal | Citrus, tomatoes, vinegar |
| Plain crackers | Chocolate, coffee, fizzy drinks |
A few simple swaps go a long way:
- Eat little and often. A full stomach pushes acid up; smaller meals are gentler.
- Slow down. Eat calmly and chew well — rushing tends to make reflux worse.
- Sip, don’t gulp. Drinking lots with meals fills your stomach; try drinking between meals instead.
- Keep a simple note of what sets yours off. Triggers are personal — one person’s safe food is another’s flare-up.
What lifestyle changes ease heartburn?
How and when you eat, sit and sleep matters as much as what you eat:
- Stay upright after meals. Wait 2 to 3 hours before lying down, and avoid eating close to bedtime.
- Sleep propped up. Raising your head and shoulders with extra pillows (or a wedge) helps keep acid down overnight.
- Wear loose clothes. Tight waistbands press on your stomach.
- Avoid bending at the waist straight after eating — bend at the knees instead.
- Manage stress. Tension can make reflux feel worse, so anything calming can help.
If night-time heartburn is wrecking your sleep, our guide to the best sleeping positions during pregnancy has more on getting comfortable.
What about antacids and medicine?
Many people find lifestyle changes are not quite enough, and that is okay. Some antacids and other reflux treatments are commonly used in pregnancy — but the right one for you depends on your situation, your trimester, and any other medicines you take.
Always check with your doctor, midwife or pharmacist before taking anything, including over-the-counter products and “natural” remedies. They can point you to something safe and effective rather than leaving you to guess.
When should I see my provider?
Heartburn is usually just an uncomfortable part of pregnancy, but reach out if:
- It is severe or constant and not helped by the changes above.
- It comes with vomiting, weight loss, or trouble swallowing.
- You have a sudden bad headache, vision changes, or pain high on the right side of your belly.
- You are using antacids most days and still struggling.
None of this is meant to worry you — it is just so your provider can help you feel better and rule anything else out. To see what else is normal at your stage, our pregnancy week-by-week guide walks through what your body is doing each week.
Heartburn can be miserable, but it is temporary and very treatable. Small, steady changes — eating little and often, staying upright, and propping yourself up at night — bring most people real relief.
Related reading
This is general information, not medical advice — check with your doctor or midwife. They are the best people to advise you on your own pregnancy and any medicines.
