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The journal · Pregnancy

Braxton Hicks Contractions: What They Feel Like, and How to Tell Them From Labor

September 26, 2026 · 12 min read · 5 sources cited

In short

Braxton Hicks contractions are practice tightenings of the uterus that show up before labor — often as early as the second trimester, and not for everyone. They are irregular, they do not get stronger or closer together, and they usually ease off when you drink water, empty your bladder, or change what you are doing. Real labor contractions do the opposite: they come at regular intervals, get longer and stronger, and keep going no matter what you do. The test that settles it most of the time is timing them from the start of one to the start of the next for an hour. Before 37 weeks, contractions are a call-your-provider thing, not a wait-and-see thing.

You are twenty-nine weeks pregnant, standing at the kitchen sink, and your whole belly goes tight and hard for half a minute. Then it lets go. Then, twenty minutes later, it happens again. And now you are doing the thing every pregnant person does at some point: standing very still, hand on your stomach, trying to decide whether this is nothing or whether this is it.

Most of the time it is Braxton Hicks — practice contractions that have a real name, a real explanation, and a handful of ways to tell them apart from the real thing. Here is what medical sources actually say about them, the one timing habit that answers the question better than any feeling does, and the specific situations where you stop guessing and pick up the phone.

01What Braxton Hicks contractions actually are

The Cleveland Clinic describes them simply: Braxton Hicks contractions are "a tightening sensation you may feel before labor begins," and "You can think of them like 'practice' contractions." Your uterus is a muscle, and it tightens and releases on and off through pregnancy without opening your cervix or starting labor.

That last part is the whole distinction, and it is worth saying plainly. MedlinePlus, the National Library of Medicine's consumer health site, lists the defining features of these pre-labor contractions: they "May occur at any time after the first trimester of pregnancy," they "Are typically short," they "Do not come at regular intervals," and they "Do not result in cervical changes that suggest the onset of true labor." No cervical change means no labor — however convincing the tightening feels in the moment.

02When Braxton Hicks start

There is no week on the calendar where they switch on. The Cleveland Clinic says "Braxton Hicks can start as early as the second trimester," and adds the part that gets left out of most articles: "Not everyone gets them, though." MedlinePlus similarly puts them anywhere after the first trimester.

So all three of these are normal: feeling them from the middle of pregnancy onward, feeling them only in the last weeks, and never noticing them at all. Not feeling Braxton Hicks is not a sign that something is wrong, and feeling a lot of them is not a sign that labor is close. They are not a countdown.

03What they feel like

According to the Cleveland Clinic, Braxton Hicks contractions "can feel like mild menstrual cramps or random tightness in your abdomen." The line that does the most work for deciding in the moment is this one: "They can be uncomfortable, but you should be able to talk and walk when you have one."

Our sources are not in perfect agreement on how much they hurt, and we would rather tell you that than pick the tidier version. MedlinePlus lists pre-labor contractions as "not painful," while the Cleveland Clinic allows that they can be uncomfortable. Both agree they are mild compared with labor. If yours are unpleasant, you are not doing pregnancy wrong.

For contrast, here is how the Cleveland Clinic describes labor contractions: "Very strong and intense menstrual cramps," "A wave-like tightness that begins at the top of your uterus and moves downward," or "A squeezing or pushing sensation across your entire abdomen."

04Braxton Hicks or real labor? The differences that hold up

Four things separate practice from the real thing, and none of them depend on how brave you are feeling.

Two other late-pregnancy signs are worth knowing, because they are the ones that actually mean something is moving. MedlinePlus describes lightening, when "your baby's head 'drops' down into your pelvis" — "Your belly will look lower. It will be easier for you to breathe because the baby is not putting pressure on your lungs." And bloody show: "If you have bloody or brownish discharge from your vagina, it may mean your cervix has begun to dilate." The same page adds the honest caveat — "This is a good sign. But active labor may still be days away." Our guide to the signs of labor walks through the rest of them.

05The one skill worth learning: how to time a contraction

Almost everyone times contractions wrong the first time, by measuring the gap between the end of one and the start of the next. The Cleveland Clinic gives the right method in one sentence: "When timing contractions, start counting from the beginning of one to the beginning of the next."

Timing them, step by step

  • Note the clock time the tightening begins — not when it peaks, and not when it ends.
  • Note when it lets go. That gap is the length of the contraction. Real labor contractions "consistently last between 30 and 70 seconds" (Cleveland Clinic).
  • Note the start of the next one. Start-to-start is how far apart they are.
  • Keep going for a full hour. One contraction tells you nothing; an hour of them tells you almost everything. Braxton Hicks scatter across the hour with no shape to them.
  • Try to change their mind. Drink a large glass of water, empty your bladder, and change position or take a short walk. If the contractions quit, that is your answer.
  • Write the times down. A short list of real times is what your provider will ask for, and it is much easier than trying to remember.

For when the timing does start to look like a pattern, the Cleveland Clinic gives a threshold worth knowing in advance: "Once your contractions last for about 60 seconds and come every three to five minutes, it's time to go to where you're giving birth." Ask your own provider for their number too, since it can differ depending on your pregnancy and how far you live from the hospital.

06What sets them off — and what settles them down

The Cleveland Clinic lists several things that may bring Braxton Hicks on: dehydration, being very active, a full bladder, sexual intercourse, and heavy lifting. You will notice that most of those are fixable in about five minutes, which is why the relief list looks the way it does.

What the Cleveland Clinic suggests for easing them

  • Drink water. Dehydration is on the trigger list, and rehydrating is the first thing to try.
  • Rest if you have been active — sit down, put your feet up, and give it ten minutes.
  • Take a walk if you have been resting. Movement and stillness both work; the point is changing what your body is doing.
  • Empty your bladder. A full one is a listed trigger, and this is the easiest fix on the page.
  • Eat a snack.
  • Do something relaxing — a bath or a prenatal massage.

None of this is a treatment, because Braxton Hicks are not a problem to be treated. They are a normal part of many pregnancies, and the goal is comfort, not a cure.

This is general information, not medical advice

Every pregnancy is different, and contractions are exactly the kind of thing your OB or midwife wants to hear about rather than have you sort out alone at midnight. Nobody on the other end of that phone will think you overreacted. If you are unsure — about what you are feeling, how often, or how far along you are — call them. That is what they are there for.

07When to stop wondering and call

There is a short list of things that move this out of the practice-contraction category entirely. The Cleveland Clinic says to call right away for bright red vaginal bleeding, continuous fluid leaking, strong contractions less than five minutes apart for an hour, or trouble talking or walking through a contraction.

MedlinePlus gives a nearly identical list: contact your provider right away for leaking amniotic fluid, decreased fetal movement, vaginal bleeding beyond light spotting, or "Regular, painful contractions every 5 to 10 minutes for 60 minutes." It also notes what usually follows your water breaking: "For most women, contractions come within 24 hours after the bag of water breaks."

Decreased fetal movement belongs on that list and has nothing to do with contractions. It is always worth a call on its own — see our guide to when you feel baby move for what normal movement looks like as pregnancy goes on.

Before 37 weeks, the rules are different

Contractions before 37 weeks are not a wait-and-see situation. MedlinePlus defines the term plainly — "Preterm labor is labor that starts before 37 completed weeks of pregnancy" — and lists the signs: contractions every 10 minutes or more often, leaking fluid or bleeding from the vagina, a feeling of pressure in the pelvis, a low dull backache, cramps that feel like menstrual cramps, and abdominal cramps with or without diarrhea. The NIH's NICHD gives the same list and adds a specific threshold: "It is not normal to have frequent uterine contractions, such as six or more in one hour." Its instruction is direct — "If a woman thinks that she might be having preterm labor, she should call her doctor or go to the hospital to be evaluated." If you are not yet 37 weeks and you are counting contractions, call instead of counting.

08What to do with the practice runs

Here is the small upside of Braxton Hicks: they are a free rehearsal. The first time your belly goes tight and you have to decide what to do, you find out very quickly whether you know your provider's after-hours number, whether the bag is packed, and whether anyone else in the house knows the plan.

So use the false alarm. Put the after-hours number in your phone under a name you can find while distracted. Get the hospital bag to the point where it could leave the house today. Work out who drives, who gets called, and who looks after the dog. Our third trimester checklist covers the rest of the late-pregnancy list.

And if the timing of all this is what has you rattled — the sense that there is a pile of preparation waiting and a hard deadline attached to it — that is the problem this site exists to solve. Enter your due date and you will get a free, personalized week-by-week plan, with the big tasks placed early instead of stacked into the weeks when your belly is tightening and bending over has become a negotiation.

Questions parents actually ask

When do Braxton Hicks contractions start?

There is no set week. The Cleveland Clinic says Braxton Hicks can start as early as the second trimester, and MedlinePlus says these pre-labor contractions may occur any time after the first trimester. The Cleveland Clinic also notes that not everyone gets them, so never noticing them is normal too.

What do Braxton Hicks contractions feel like?

The Cleveland Clinic describes them as feeling like mild menstrual cramps or random tightness in your abdomen, and says that while they can be uncomfortable, you should be able to talk and walk through one. MedlinePlus describes pre-labor contractions as typically short and not painful. Labor contractions, by contrast, are described as very strong, intense cramping or a wave of tightness that starts at the top of the uterus and moves down.

How can I tell Braxton Hicks from real contractions?

Time them from the start of one to the start of the next for an hour, then try to interrupt them. Braxton Hicks are irregular, do not get stronger or closer together, and usually stop when you walk, change position, or drink water. Real labor contractions come at regular intervals about 5 to 10 minutes apart, last 30 to 70 seconds and get longer, keep getting stronger, and do not stop no matter what you do.

How do I make Braxton Hicks contractions stop?

The Cleveland Clinic suggests drinking water, resting if you have been active, taking a walk if you have been resting, emptying your bladder, eating a snack, or doing something relaxing like a bath or a prenatal massage. Dehydration, high activity, a full bladder, sex, and heavy lifting are all listed as possible triggers, which is why those simple fixes often work.

Do Braxton Hicks mean labor is coming soon?

Not reliably. By definition, these contractions do not produce the cervical changes that mark the start of true labor, per MedlinePlus, and they can show up months before your due date. Signs that something is actually moving include lightening — when the baby's head drops into your pelvis and your belly looks lower — and bloody show, though MedlinePlus cautions that even then active labor may still be days away.

When should I call my provider about contractions?

Call right away for bright red vaginal bleeding, fluid leaking continuously, strong contractions less than five minutes apart for an hour, or trouble talking or walking through a contraction, per the Cleveland Clinic. MedlinePlus adds decreased fetal movement and regular painful contractions every 5 to 10 minutes for 60 minutes. And if you are not yet 37 weeks, contractions every 10 minutes or more often — or more than six in an hour — mean calling your provider or going in to be evaluated rather than waiting it out.

Sources

  1. Cleveland Clinic — Braxton Hicks Contractions — Braxton Hicks are a tightening sensation felt before labor begins and can be thought of as practice contractions; they can start as early as the second trimester and not everyone gets them; they feel like mild menstrual cramps or random abdominal tightness and you should be able to talk and walk through one; they are irregular and don't get stronger or closer together, and walking or changing positions makes them stop; possible triggers include dehydration, high activity, a full bladder, intercourse, and heavy lifting; relief measures include walking, resting, hydrating, a snack, emptying the bladder, a bath, or prenatal massage; call right away for bright red bleeding, continuous fluid leaking, strong contractions less than five minutes apart for an hour, or trouble talking or walking through contractions.
  2. MedlinePlus (NIH National Library of Medicine) — Am I in labor? — Pre-labor (Braxton Hicks) contractions may occur any time after the first trimester, are typically short, are not painful, do not come at regular intervals, and do not cause cervical changes; true labor contractions come regularly about 5 to 10 minutes apart, last 30 to 70 seconds and get longer, do not stop no matter what you do, and get stronger over time; lightening is when the baby's head drops into the pelvis, making the belly look lower and breathing easier; bloody or brownish discharge may mean the cervix has begun to dilate, though active labor may still be days away; for most women contractions come within 24 hours after the bag of water breaks; contact your provider right away for leaking amniotic fluid, decreased fetal movement, vaginal bleeding beyond light spotting, or regular painful contractions every 5 to 10 minutes for 60 minutes.
  3. Cleveland Clinic — Contractions — Labor contractions feel like very strong, intense menstrual cramps, a wave-like tightness beginning at the top of the uterus and moving downward, or a squeezing sensation across the abdomen; true contractions are regular and get closer together while false ones are irregular and unpredictable; true contractions happen even at complete rest and walking or changing positions doesn't stop them; true contractions consistently last 30 to 70 seconds while false ones tend to last 20 to 40 seconds at irregular intervals; time contractions from the beginning of one to the beginning of the next; once contractions last about 60 seconds and come every three to five minutes, it's time to go to your birth location.
  4. MedlinePlus (NIH National Library of Medicine) — Preterm Labor — Preterm labor is labor that starts before 37 completed weeks of pregnancy; symptoms include contractions every 10 minutes or more often, leaking fluid or bleeding from the vagina, a feeling of pressure in the pelvis, a low dull backache, cramps that feel like menstrual cramps, and abdominal cramps with or without diarrhea; contact your health care provider if you think you might be having preterm labor.
  5. NICHD (NIH) — What are the symptoms of preterm labor? — The full list of preterm labor symptoms, including contractions every 10 minutes or more often; it is not normal to have frequent uterine contractions such as six or more in one hour; if a woman thinks she might be having preterm labor she should call her doctor or go to the hospital to be evaluated.

Newborn Weeks is planning help, not medical advice — always follow your own doctor, midwife, or pediatrician.

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