Stomach pain during pregnancy is extremely common, and most of the time it comes from the normal physical changes your body is going through. Your uterus is expanding, your digestive system is slowing down, and ligaments are stretching to accommodate a growing baby. That said, some types of pain signal something that needs medical attention, so knowing the difference matters.
Cramping and Pain in Early Pregnancy
Mild cramping in the first weeks of pregnancy is one of the earliest signs that implantation has occurred. This typically happens 6 to 10 days after ovulation and feels like a tingling, pulling, or pricking sensation, much lighter than period cramps. It’s brief and low-intensity. If you’re experiencing sharp or intense cramping in early pregnancy, especially with bleeding, that’s worth a call to your provider since it could point to an ectopic pregnancy or miscarriage.
An ectopic pregnancy, where the embryo implants outside the uterus (usually in a fallopian tube), causes pelvic pain along with light vaginal bleeding as its first warning signs. Shoulder pain or an urge to have a bowel movement can also occur if internal bleeding is happening. Severe pelvic pain with vaginal bleeding, extreme lightheadedness, or fainting requires emergency care immediately.
Round Ligament Pain
Round ligament pain is one of the most common causes of sharp stomach pain in pregnancy. It usually shows up during the second trimester (weeks 14 through 27), though it can start earlier or later. The round ligaments support your uterus, and as it grows, these ligaments stretch and can spasm.
The pain typically hits the lower pelvis or groin area, on one or both sides. It often comes on suddenly when you change positions, sneeze, cough, or laugh. The reassuring thing: it usually lasts only a few seconds or minutes and then goes away on its own. If the pain is constant, severe, or comes with fever or bleeding, it’s not round ligament pain.
Digestive Discomfort
Pregnancy hormones slow your entire digestive system down, which means gas, bloating, and constipation are nearly universal. The discomfort can range from a dull, full feeling to sharp gas pains that mimic something more serious. These symptoms tend to get worse as pregnancy progresses and the uterus puts more pressure on your intestines.
Lifestyle changes help the most. Drinking plenty of water, eating high-fiber foods like fruits, vegetables, beans, and whole grains, and staying physically active can all keep things moving. Prune juice is a reliable option. If constipation becomes uncomfortable, stool softeners are generally considered safe during pregnancy because the active ingredient is only minimally absorbed by the body. Fiber supplements and certain other over-the-counter laxatives are also typically fine, but check with your provider before starting any of them.
Braxton Hicks Contractions
Starting in the second or third trimester, you may feel your uterus tighten and then relax. These are Braxton Hicks contractions, sometimes called “practice contractions,” and they’re a normal part of pregnancy. They can feel uncomfortable or even painful, but they have a few key features that set them apart from real labor.
Braxton Hicks contractions are irregular. They don’t follow a pattern and don’t get closer together over time. They often stop when you walk, rest, or change position. Drinking water and lying down can make them disappear entirely. True labor contractions, by contrast, come at regular intervals, get progressively closer together, last about 60 to 90 seconds each, and continue no matter what you do. If you’re unsure which you’re feeling, time them. If rest and hydration make them stop, they’re not real labor.
Urinary Tract Infections
UTIs are more common during pregnancy and can cause lower abdominal or pelvic discomfort along with burning during urination, frequent urges to urinate, or pain during sex. If the infection spreads to the kidneys, you may develop back pain or flank pain (pain along your side). A UTI needs treatment with antibiotics during pregnancy because untreated infections can lead to complications, so don’t wait it out if you suspect one.
Pain That Needs Immediate Attention
Most pregnancy stomach pain is harmless, but certain patterns are red flags. Pain in the upper right abdomen, just under the ribs, can be a sign of preeclampsia or a related liver condition called HELLP syndrome. This pain sometimes radiates to the right shoulder and feels like a deep, intense pinching along the bra strap or neck area. It’s distinct from the general muscle soreness of pregnancy because it’s more acute and specific.
Placental abruption, where the placenta separates from the uterine wall before delivery, causes abdominal and back pain that often starts suddenly. It may come with vaginal bleeding, though not always. This is a medical emergency.
The CDC identifies several urgent warning signs during pregnancy that require immediate medical care:
- Severe belly pain that doesn’t go away
- Vaginal bleeding that’s more than light spotting
- Fever of 100.4°F or higher
- Severe nausea or vomiting where you can’t keep fluids down for more than 8 hours
- Vision changes like flashes of light, bright spots, or blurry vision
- Extreme swelling of the hands or face
- A change in fetal movement where the baby stops moving or moves less than usual
- Ongoing dizziness or fainting
The general rule: brief, mild pain that comes and goes, responds to rest or position changes, and isn’t accompanied by bleeding, fever, or other symptoms is almost always normal pregnancy discomfort. Pain that is severe, constant, worsening, or paired with any of the warning signs above is telling you something different.