Braxton Hicks contractions are irregular, usually mild “practice” tightenings of the uterus that don’t build in strength or frequency. Real labor contractions follow a pattern: they get longer, stronger and closer together, and they don’t ease when you rest or change position. The NHS describes practice contractions as uncomfortable but usually painless, and notes that they don’t build up the way labor contractions do. If you are ever unsure, it is always fine to call your midwife, OB-GYN or labor and delivery unit.
Quick Answer: Braxton Hicks vs. Real Contractions
| Sign | Braxton Hicks | Real labor contractions |
|---|---|---|
| Pattern | Irregular and unpredictable | Regular, with gaps that shrink over time |
| Strength | Stays the same, or fades | Gets steadily stronger |
| Duration | Usually 15–30 seconds, occasionally up to 2 minutes | Lengthens, typically 30–70 seconds |
| Rest or movement | Often eases with water, rest or a change of position | Keeps going whatever you do |
| Where you feel it | Mostly the front of the abdomen | Often starts in the lower back and wraps around to the front |
| Walk-and-talk test | You can usually walk and talk through it | Eventually you need to stop and breathe through each one |
| Cervix | No change | Dilates (opens) and thins |
Duration alone is not a reliable clue, because a Braxton Hicks tightening can occasionally last longer than expected. Look at the whole picture instead: is there a pattern, is it getting stronger, and does it stop when you change what you are doing?
What Are Braxton Hicks Contractions?
Braxton Hicks contractions are the uterus tightening and relaxing as your body practices for labor. They can start as early as the second trimester, although most people notice them in the third trimester, and some people never notice them at all. They are normal and do not mean labor is starting.
They are often described as a tightening or hardening across the bump, or mild period-like cramping that comes and goes. According to Cleveland Clinic and Mayo Clinic Health System, common triggers include:
- Dehydration
- A full bladder
- Being very active, or lifting something heavy
- Sex
- Late afternoon or evening (they often show up later in the day)
You can usually ease them with simple steps: drink a large glass of water, empty your bladder, change position (rest if you have been active, or walk around if you have been sitting), have a snack, or take a warm bath.
What Do Real Labor Contractions Feel Like?
True labor contractions begin to follow a rhythm. Each one tends to last about 30–70 seconds, and the time between them shortens as labor progresses. The pain often starts in the lower back and moves around to the front, and it keeps going even if you walk, lie down or have a bath. As labor moves on, most people find they can no longer talk through a contraction. Our complete labor guide walks through early, active and transition labor stage by stage.
Signs Labor Has Begun
According to the NHS, signs that labor is starting include:
- Regular contractions or tightenings
- A “show” (the plug of mucus from your cervix coming away)
- Backache
- An urge to use the toilet, from the pressure of the baby’s head
- Your waters breaking
Not everyone has all of these, and the order varies. A single sign on its own, such as a show or an achy back, does not always mean labor is imminent.
The 5-1-1 Rule: When to Head to the Hospital
The most widely used guide is the 5-1-1 rule: contractions come every 5 minutes, last 1 minute each, and have followed that pattern for 1 hour. Many providers suggest calling or heading in at that point for a first baby.
Treat it as a starting point, not a rule that fits everyone. Ask your own provider for their threshold, especially if you live far from the hospital, have labored quickly before, or have a higher-risk pregnancy. To track the pattern, time several contractions from the start of one to the start of the next with our contraction timer.
Prodromal Labor: When Contractions Feel Real but Labor Does Not Progress
Some people have regular, noticeably painful contractions that fade after hours without the cervix opening much. This is often called prodromal or “false” labor. It can feel very real, and it is exhausting, but it is not a sign that anything is wrong. Only an exam can show whether the cervix is changing, so if your contractions are regular and strong, call your provider rather than guessing.
Braxton Hicks or Preterm Labor? If You Are Under 37 Weeks
Before 37 weeks, regular contractions deserve a call. Cleveland Clinic lists four or more contractions in an hour that do not go away after you change position or rest as a warning sign of preterm labor. Other signs to report include lower back pain that is new or constant, menstrual-like cramps, increased pelvic pressure, and a change in vaginal discharge. Do not wait to see if it settles. Call your provider or maternity unit the same day, or go straight in if symptoms are strong.
When to Call Right Away
Contact your midwife, OB-GYN or maternity unit urgently if:
- Your waters break, even without contractions.
- You have vaginal bleeding.
- Your baby is moving less than usual.
- You think you are in labor and are under 37 weeks.
- A contraction lasts more than 2 minutes, or you have 6 or more in 10 minutes (the NHS lists these as urgent).
- Contractions are strong and regular and you can no longer walk or talk through them.
The NHS advises not waiting until the next day to call, even in the middle of the night. Call emergency services if you feel the baby is coming now and you have a strong urge to push.
What to Do If You Are Not Sure
- Drink a large glass of water and empty your bladder.
- Change position, or lie on your left side and rest for a while.
- Time several contractions with the contraction timer, from the start of one to the start of the next.
- If they keep a steady pattern and get stronger, call your provider.
- If they fade, stay irregular or stop, they were most likely Braxton Hicks. Keep an eye on them and call if anything changes.
Getting ready? Our hospital bag checklist helps you pack before your window opens, and our third trimester guide covers what else to expect in the final weeks.
Frequently Asked Questions
Can Braxton Hicks hurt?
They can feel uncomfortable, and some people find them quite strong, but they are usually more tight than painful. Pain that is building, rhythmic and not easing with rest or water suggests true labor.
When do Braxton Hicks contractions start?
They can begin as early as the second trimester, but they are most noticeable in the third trimester and tend to become more frequent as your due date approaches. Not everyone feels them.
How many Braxton Hicks per hour is normal?
There is no set number. Occasional, irregular tightenings that ease with water and rest are normal. A regular pattern, or four or more an hour that do not settle before 37 weeks, should be checked by your care team.
Does lying down stop true labor contractions?
No. True contractions usually continue and strengthen despite rest, a bath or a change of position, while Braxton Hicks often fade or stop.
When should I go to the hospital for contractions?
Many providers use the 5-1-1 rule (every 5 minutes, lasting 1 minute, for 1 hour), but follow your own provider’s advice. Go sooner for bleeding, leaking fluid, reduced baby movement, or any labor symptoms before 37 weeks.
Are Braxton Hicks contractions dangerous for the baby?
No. They are a normal part of pregnancy and do not harm the baby or mean labor is starting. What matters is how they change: contractions that become regular, painful or frequent should be assessed.
Skip the Guesswork
Time your contractions with the contraction timer and check how far along you are with the due date calculator.
Sources
- NHS: Signs that labour has begun
- Cleveland Clinic: Braxton Hicks contractions
- Cleveland Clinic: Preterm labor
- Mayo Clinic Health System: Braxton Hicks contractions Q&A
- Tommy’s: Braxton Hicks contractions
- American Pregnancy Association: Braxton Hicks contractions
- PregCalc medical review process
This page is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your OB-GYN or midwife about your own pregnancy.
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