Braxton Hicks contractions are irregular tightening sensations in your uterus that happen during pregnancy but don’t signal labor. They’re often called “practice contractions” because the uterine muscle contracts and relaxes without causing any cervical changes. They actually begin around 6 weeks of pregnancy, but most women don’t feel them until the second or third trimester.
What They Feel Like
Braxton Hicks typically feel like a squeezing or tightening across your abdomen. Your belly may temporarily feel hard to the touch, almost like a ball. The sensation is usually more uncomfortable than painful, though intensity varies from person to person and pregnancy to pregnancy. Some women barely notice them, while others find them genuinely distracting.
Each contraction usually lasts anywhere from 30 seconds to about 2 minutes. They come and go without any predictable rhythm, and they tend to fade on their own, especially if you change what you’re doing. Unlike real labor contractions, they don’t build in intensity over time or settle into a regular pattern.
When They Start
Your uterus begins contracting as early as 6 weeks into pregnancy, but these early contractions are far too mild to notice. Most women first become aware of Braxton Hicks in the third trimester, roughly around weeks 28 to 30. Some notice them earlier, during the second trimester, particularly women who have been pregnant before.
They tend to become more frequent as your due date approaches. In the final weeks of pregnancy, Braxton Hicks can happen several times a day, which understandably makes many women wonder whether labor has started.
Common Triggers
Braxton Hicks don’t happen randomly. Several everyday situations make them more likely:
- Dehydration. Even mild dehydration can trigger uterine irritability and bring on contractions.
- Physical activity. Exercise, lifting, or being on your feet for long periods often sets them off.
- A full bladder. Pressure from a full bladder can stimulate the uterus to contract.
- Sex. Orgasm causes uterine contractions, which can continue as Braxton Hicks afterward.
- Sitting or standing in one position too long. Staying in the same posture for extended periods is a common trigger.
How to Tell Them Apart From Real Labor
This is the question that sends most pregnant women to a search engine, and the distinction matters. Real labor contractions differ from Braxton Hicks in several consistent ways.
Braxton Hicks are irregular. They might come 10 minutes apart, then 20 minutes, then 6 minutes, with no pattern emerging. True labor contractions gradually become regular and predictable, with the interval between them steadily shortening over time. Real contractions also grow stronger with each wave rather than staying the same intensity or fading away.
Location is another clue. Braxton Hicks tend to concentrate in the front of your abdomen. True labor contractions often start in your lower back and wrap around to the front, producing a deeper, more cramping pain. Walking or changing positions will usually ease Braxton Hicks, but true labor contractions persist no matter what you do.
A simple test: drink a large glass of water, lie down on your side, and rest for 30 minutes. Braxton Hicks will typically slow down or stop entirely. Real labor won’t.
How to Get Relief
Because Braxton Hicks aren’t dangerous, the goal is simply comfort. Drinking plenty of water is the single most effective thing you can do, since dehydration is one of the most common triggers. A warm bath can help relax the uterine muscle and reduce the tightening sensation.
If you’ve been sitting or standing in one position, change it. Get up and take a short walk, or if you’ve been active, lie down and rest. Changing positions every 30 minutes or so can prevent contractions from starting in the first place. If you’ve been on your feet for a while, taking a break to sit with your legs up often helps.
When Contractions Need Attention
Braxton Hicks are a normal part of pregnancy, but certain patterns can signal something more serious. Contractions that come more than four times in an hour before 37 weeks could indicate preterm labor. The same is true if contractions become regular and progressively stronger, if they don’t stop when you hydrate and rest, or if they’re accompanied by vaginal bleeding, fluid leaking, or pelvic pressure that feels like the baby is pushing downward.
Under federal triage guidelines, a qualified medical professional can determine whether contractions represent false labor after a reasonable observation period. If you’re unsure, timing your contractions for an hour and noting whether they’re getting closer together gives you useful information to share when you call your provider.