How do I tell Braxton Hicks from real contractions?

Braxton Hicks are irregular and unpredictable, don't get closer together or stronger, and usually ease when you change position, rest, take a warm bath, or drink water. Real labor contractions come at regular intervals and get closer, longer, and stronger over time, often starting in the lower back and wrapping to the front — and they don't stop when you move. Timing them over an hour is the clearest test.

What is the 5-1-1 rule?

It's a common guide in the US for when to call: contractions about 5 minutes apart, each lasting about 1 minute, continuing for about 1 hour. When you hit that pattern, it's time to contact your provider. The NHS phrases it slightly differently — call when contractions are regular and coming every 5 minutes or closer. Follow whatever your own provider has told you.

When should I go in urgently?

Seek urgent care if you have 6 or more contractions in 10 minutes, any single contraction lasting over 2 minutes, your waters break, you have vaginal bleeding, or you notice reduced fetal movement. And if you're before 37 weeks and having regular contractions, call right away — that could be preterm labor. When in doubt, always call; your team would rather hear from you.

Braxton Hicks or real labor? How to tell the difference

Somewhere in the third trimester, your belly tightens into a firm ball, holds for a moment, and relaxes. Your heart jumps — is this it? Then nothing else happens, and you're left wondering whether you imagined the start of labor. This guessing game is one of the most universal experiences of late pregnancy, and the good news is there's a clear, learnable way to tell the difference.

The two things you're trying to distinguish are Braxton Hicks — often called "practice contractions" — and true labor. They can feel similar in the moment, but they behave very differently over time. Once you know what to watch, you can usually tell which one you're having without leaving your couch.

Braxton Hicks: the practice runs

Braxton Hicks contractions are your uterus rehearsing. Their defining traits:

Irregular and unpredictable — no steady rhythm.
They don't get closer together over time.
They don't get stronger — the intensity stays roughly the same or fades.
They usually ease up when you change position, rest, take a warm bath, or drink water.
Crucially, they don't change your cervix — they're practice, not progress.

If your tightenings back off when you move around or sip some water, you're very likely feeling Braxton Hicks.

True labor: the real thing builds

True labor contractions have a different signature — they organize and intensify:

They come at regular intervals and get closer together over time.
They get longer and stronger as labor progresses.
They often start in your lower back and wrap around to the front.
They do not stop when you move — walking, resting, or a bath won't make them quit.
Each one typically lasts about 30 to 70 seconds.

The single most useful thing you can do is time them over an hour. Practice contractions stay scattered; real ones march steadily closer together.

The timing rules: when to call

Different sources phrase the threshold slightly differently, but they point to the same moment.

The US "5-1-1" guide: contractions about 5 minutes apart, each lasting about 1 minute, continuing for about 1 hour — that's your cue to call your provider.
The NHS guidance: call when your contractions are regular and coming every 5 minutes or closer.

Whichever framing your own provider has given you, follow theirs. For the fuller picture of everything that signals labor is underway, see our guide on the signs of labor and when to go to the hospital.

When to seek urgent care

Some situations don't wait for the 5-1-1 pattern. Seek urgent care right away if you have:

6 or more contractions in 10 minutes.
Any single contraction lasting over 2 minutes.
Your waters break.
Vaginal bleeding.
Reduced fetal movement — your baby moving less than usual.

A special note before 37 weeks

If you're before 37 weeks and having regular contractions, don't wait to see if they fit a tidy pattern. Regular, building contractions this early could mean preterm labor, and that's a reason to call right away. Early treatment can make a real difference, so it's always worth the phone call — even if it turns out to be a false alarm.

When in doubt, call

Here's the permission you may be looking for: you do not need to be certain before you call. False alarms are completely normal, and your care team expects them — especially with a first baby. If something feels off, if you can't tell what you're experiencing, or if any of the urgent signs above show up, call. No one will be annoyed, and getting checked is always reasonable.

The reassuring close

Telling practice contractions from the real thing comes down to a simple question: do they fizzle when you move and rest, or do they keep building closer, longer, and stronger no matter what you do? Time them, sip some water, change position — and if they organize into that steady rhythm, or any urgent sign appears, make the call. Your body has been rehearsing for this. When the real performance begins, you'll have the tools to recognize it, and your team will be ready to meet you.