An upset stomach during pregnancy is one of the most common complaints, affecting up to 80% of pregnant women to some degree. The good news: most remedies are simple, safe, and available without a prescription. What works best depends on whether you’re dealing with nausea, acid reflux, bloating, or some combination of all three.
Why Pregnancy Upsets Your Stomach
Rising levels of progesterone relax smooth muscle throughout your body, including the muscles that move food through your digestive tract. The result is slower gastric emptying, meaning food sits in your stomach longer than usual. That sluggish digestion contributes to nausea, bloating, and constipation. Progesterone also relaxes the valve between your esophagus and stomach, which is why heartburn and acid reflux become so common as pregnancy progresses.
On top of that, the combination of estrogen, progesterone, and hCG (the hormone your body produces to sustain the pregnancy) directly triggers nausea and vomiting, especially in the first trimester. Understanding these overlapping causes helps explain why no single fix works for everyone, and why combining several strategies tends to give the most relief.
Eat More Protein, Eat Smaller Portions
What you eat matters more than you might expect. A controlled study of pregnant women in their first trimester found that protein-heavy meals significantly reduced both nausea and abnormal stomach contractions compared to meals high in carbohydrates or fat. The protein meals in the study contained about 30% protein, 50% carbohydrates, and 20% fat. Observational data backs this up: women experiencing nausea and vomiting during pregnancy tend to eat less protein and more carbohydrates overall.
This doesn’t mean you need to force down a steak when you’re nauseated. Practical protein sources that are easier on a queasy stomach include yogurt, cheese, nuts, nut butter on toast, eggs, and chicken broth. Eating five or six small meals throughout the day instead of three large ones keeps your stomach from being either too empty or too full, both of which can trigger nausea. Keeping plain crackers or a handful of almonds by your bed to eat before getting up in the morning helps many women get through the worst of early-day nausea.
Ginger for Nausea
Ginger is one of the most studied natural remedies for pregnancy nausea, and the evidence is genuinely encouraging. A meta-analysis pooling multiple clinical trials found that ginger significantly improved nausea symptoms compared to placebo. Interestingly, doses under 1,500 mg per day appeared to work better than higher doses for nausea relief. Ginger was less effective at stopping actual vomiting episodes, though there was a trend toward improvement.
You can get ginger through capsules, ginger tea, ginger chews, or even flat ginger ale (though most commercial ginger ales contain very little real ginger). If you go with capsules, staying under 1,500 mg daily is a reasonable target. Many women find that sipping ginger tea throughout the morning is the easiest way to get a steady, gentle dose.
Vitamin B6 and Combination Treatments
Vitamin B6 is a go-to recommendation for pregnancy nausea. A typical dose is 10 to 25 mg taken three times a day, with a ceiling of 200 mg daily. It’s widely available over the counter and worth trying before moving to anything stronger.
If B6 alone isn’t enough, a combination of vitamin B6 and doxylamine (an antihistamine found in some over-the-counter sleep aids) has been extensively studied in pregnant women. Research involving hundreds of thousands of pregnancies has shown no increased risk of birth defects, miscarriage, preterm delivery, or low birth weight. Follow-up studies tracking children up to age 7 found no higher rates of behavioral or learning problems. The main side effect is drowsiness, which some women actually welcome at bedtime but find inconvenient during the day. Your provider can help you decide whether to try this combination and at what dose.
Managing Heartburn and Acid Reflux
Antacids containing aluminum, calcium, or magnesium are considered safe in pregnancy and are recommended as a first-line option for heartburn and reflux. However, there are a few ingredients to avoid. Bicarbonate-containing antacids carry a risk of fluid overload and metabolic changes for both you and the baby. High-dose or prolonged use of magnesium trisilicate has been linked to kidney stones and breathing problems in newborns. If you’re using calcium carbonate antacids, keep your total elemental calcium from those tablets under 1.4 grams per day to avoid a condition called milk-alkali syndrome.
Beyond antacids, sleeping on your left side can make a noticeable difference. When you lie on your right side, your esophagus sits below the junction with your stomach, which essentially lets acid pool and linger. Sleeping on your left side reverses that positioning, helping acid clear faster. Elevating the head of your bed a few inches and avoiding food for two to three hours before lying down also help keep reflux in check.
Wrist Acupressure
Pressing on the P6 point, located on the inside of your wrist about three finger-widths below the base of your palm, is a low-risk option that some women find helpful. One randomized trial in women with severe pregnancy nausea found statistically significant reductions in nausea and vomiting at 8, 16, and 24 hours after starting P6 acupressure, along with less need for anti-nausea medication. No side effects were reported in either group.
The overall evidence is mixed. Some meta-analyses suggest acupressure works better than standard care alone, while Cochrane reviews have concluded the quality of evidence is too low to draw firm conclusions. That said, the complete absence of side effects makes it a reasonable thing to try. Wristbands marketed for motion sickness (often called “sea bands”) apply pressure to this same point and are inexpensive and widely available.
Staying Hydrated When You Can’t Keep Much Down
Dehydration is one of the real risks when vomiting is frequent. Sipping small amounts of fluid constantly throughout the day works better than trying to drink a full glass at once. Drinks that contain electrolytes are preferable to plain water when you’re losing fluids to vomiting, because you’re also losing sodium, potassium, and other minerals your body needs. Diluted sports drinks, coconut water, or oral rehydration solutions all work. Some women tolerate cold or frozen liquids better than room-temperature ones, and sucking on ice chips or frozen fruit can help when even sipping feels like too much.
Signs That Something More Serious Is Happening
Most pregnancy nausea, while miserable, is manageable. Hyperemesis gravidarum is a more severe condition marked by persistent vomiting, weight loss of 5% or more of your pre-pregnancy weight, and dehydration. Warning signs include a very dry mouth, dark urine or very little urine output, dizziness when standing up, inability to keep any food or liquid down for 24 hours, and fatigue so severe you can’t manage daily activities. Hyperemesis gravidarum can lead to serious complications including kidney injury and nutritional deficiencies, and it typically requires medical treatment with IV fluids and electrolyte replacement. If your nausea and vomiting cross the line from unpleasant to debilitating, that distinction matters and getting help early makes a difference.