Practice contractions, known medically as Braxton Hicks contractions, are irregular tightenings of the uterus that occur during pregnancy but don’t signal labor. They can start as early as the second trimester, though most people don’t notice them until the third trimester. They’re harmless, usually painless, and your body’s way of preparing the uterine muscles for the work of delivery.
What They Feel Like
A practice contraction feels like your belly suddenly gets very tight or hard, almost like a squeezing sensation across the front of your abdomen. If you put your hand on your stomach during one, you can often feel the uterus firm up into a ball shape. The tightening typically lasts anywhere from 30 seconds to about two minutes, then fades on its own.
Most people describe them as uncomfortable rather than painful, though the sensation can catch you off guard the first few times. Some feel nothing at all and only notice the tightening when they happen to touch their belly. Late in the third trimester, practice contractions can become stronger and more noticeable, which is sometimes called “false labor” because the sensation starts to mimic the real thing more closely.
When They Typically Start
Braxton Hicks contractions actually begin early in pregnancy, sometimes around week 6, but they’re so mild at that stage that you won’t feel them. Most people start noticing them somewhere between weeks 20 and 28. They tend to become more frequent in the final weeks before your due date, particularly from week 32 onward.
First-time pregnancies and subsequent pregnancies can feel different. Some people who’ve been pregnant before report noticing practice contractions earlier and feeling them more intensely. How often they happen varies widely from person to person, and even from day to day during the same pregnancy.
Common Triggers
The exact cause of Braxton Hicks contractions isn’t fully understood, but several situations reliably trigger them:
- Physical activity: Being on your feet a lot, exercising, or even just a busy day of errands can bring them on.
- Dehydration: Not drinking enough water is one of the most common triggers. Even mild dehydration can set off a round of tightening.
- A full bladder: The pressure of a full bladder against the uterus often prompts contractions.
- Sexual activity: Orgasm and physical stimulation can cause the uterus to contract temporarily.
- Someone touching your belly: External pressure or the baby moving into a new position can also trigger them.
How to Tell Them Apart From Real Labor
This is the question that brings most people to search in the first place, and the distinction matters. Practice contractions and true labor contractions differ in four key ways: pattern, intensity, location, and response to movement.
Braxton Hicks contractions are irregular. They might come twice in an hour, then nothing for several hours. True labor contractions fall into a predictable rhythm, getting closer together over time. If you time them and the interval between contractions is shrinking steadily, that’s labor.
Practice contractions stay about the same intensity or get weaker. Labor contractions build, growing longer and more painful as time goes on. In terms of location, Braxton Hicks are usually felt only in the front of the abdomen. Labor contractions often start in the lower back and wrap around to the front, or radiate through the pelvis.
The most practical test: change what you’re doing. If you’ve been walking, sit or lie down. If you’ve been resting, get up and move. Drink a full glass of water. Practice contractions typically ease up or stop entirely within a few minutes of changing position or hydrating. True labor contractions keep coming regardless of what you do.
How to Get Relief
Since Braxton Hicks contractions respond to triggers, relief is usually a matter of addressing whatever set them off. Cleveland Clinic recommends these straightforward strategies:
- Switch positions: If you’ve been sitting, take a short walk. If you’ve been active, lie down and rest.
- Drink water: A tall glass of water resolves many episodes within minutes, especially if you’ve been busy and forgot to hydrate.
- Empty your bladder: Reducing pressure on the uterus can stop the tightening quickly.
- Eat a snack: Low blood sugar can contribute to uterine irritability.
- Relax: A warm bath, slow breathing, or lying down with a book can help your body settle.
None of these strategies require medication. Practice contractions are a normal part of pregnancy, not a problem to solve. Think of them as a rehearsal your uterus runs on its own schedule.
Signs That Something Else Is Going On
While Braxton Hicks are harmless, contractions before 37 weeks that don’t stop with rest and hydration could indicate preterm labor. The American College of Obstetricians and Gynecologists identifies several warning signs to watch for alongside frequent tightening:
- A change in vaginal discharge, especially if it becomes watery, bloody, or mucus-like
- An increase in the amount of discharge
- Constant, dull lower back pain that doesn’t go away with position changes
- Pelvic pressure or cramping that feels like menstrual cramps, with or without diarrhea
- A gush or steady trickle of fluid, which could mean your water has broken
If contractions become regular and frequent before 37 weeks, or if any of the symptoms above appear alongside them, contact your provider right away or go to the hospital. The key distinction is that Braxton Hicks are sporadic and stop on their own. Contractions that settle into a steady pattern and persist through rest, hydration, and position changes are telling you something different.