The 5-1-1 Rule for Contractions: What It Means and When to Call
The 5-1-1 rule means your contractions come every 5 minutes, each one lasts about 1 minute, and that pattern has continued for 1 hour. Many providers use it as the point to call them or head to the hospital or birth center. It's a guideline, not a diagnosis: follow the instructions your own provider gives you, and call right away for warning signs like your water breaking, bleeding, or your baby moving less.
Important: This article is for general information and isn't medical advice. If you think you're in labor or you're unsure, call your provider.
What Each Number in 5-1-1 Means
| Number | Means | How to measure it |
|---|---|---|
| 5 | Contractions are about 5 minutes apart | From the start of one contraction to the start of the next |
| 1 | Each contraction lasts about 1 minute | From when the tightening starts to when it fully eases |
| 1 | The pattern has held for 1 hour | Regular, not just two or three close together |
The last "1" is the one people most often skip. A few contractions 5 minutes apart can happen in early labor or with Braxton Hicks. The rule asks for a steady pattern over a full hour, because true labor contractions keep coming and get closer together over time (ACOG).
UT Southwestern Medical Center describes the same rule: contractions every 5 minutes, each lasting at least 1 minute, ongoing for 1 hour, and "when you meet the 5-1-1 rule, call your doctor's office or come in" (UT Southwestern).
How to Time Contractions for the 5-1-1 Rule
- Start timing once you've felt a few contractions in a row. One or two scattered tightenings don't need timing yet.
- Record when each contraction starts and ends. Duration is start to end.
- Measure frequency from start to start. "5 minutes apart" includes the contraction itself, not just the rest between them.
- Keep going for an hour and look at the overall pattern, not a single gap.
Doing this with a stopwatch and paper is fiddly mid-contraction. Our free contraction timer does the math for you: tap when a contraction starts and ends, and it shows your average spacing and length and tracks progress toward a full hour of 5-1-1 (or 4-1-1 or 3-1-1). It also keeps your screen on while you time.
5-1-1 vs 4-1-1 vs 3-1-1
You may be told to use a different version of the rule. They work the same way, with closer spacing:
| Rule | Contractions every | Each lasting | For |
|---|---|---|---|
| 5-1-1 | 5 minutes | ~1 minute | 1 hour |
| 4-1-1 | 4 minutes | ~1 minute | 1 hour |
| 3-1-1 | 3 minutes | ~1 minute | 1 hour |
Which one applies depends on your provider's advice, whether this is your first baby, how far you live from the hospital, and your health and pregnancy. Guidance also varies between hospitals. Kaiser Permanente, for example, suggests that first-time parents come in when contractions come every 3 to 5 minutes over an hour and last at least 45 to 60 seconds (Kaiser Permanente).
Outside the US you may hear it phrased differently. The NHS says to call your midwife or maternity unit if you're having regular contractions every 5 minutes or more often (NHS).
When Not to Wait for 5-1-1
The 5-1-1 rule is only about contraction timing. Call your provider or go in right away, whatever your contractions are doing, if:
- Your water breaks, even without contractions
- You have heavy or bright red bleeding
- You have constant, severe pain with no relief between contractions
- Your baby is moving less than usual
- You're less than 37 weeks pregnant and think you might be in labor
- A contraction lasts longer than 2 minutes, or you have 6 or more contractions in 10 minutes
These signs come from ACOG and the NHS. The NHS adds: don't wait until the next day, call immediately even in the middle of the night.
If you're worried about your baby's movements, read our guide to decreased fetal movement or do a quick session with the online kick counter, then call your provider.
When You Might Be Told to Go Sooner
Your provider may want you to come in before you reach 5-1-1 if:
- You've given birth before. Labor is often faster the second time. Kaiser Permanente advises coming in at contractions every 5 to 7 minutes lasting 45 to 60 seconds if you've given birth before.
- You live far from the hospital. ACOG suggests planning for traffic, rush hour and delays on your route, and Ireland's HSE notes you may need to go sooner if you live a long distance away (HSE).
- You have a planned C-section or a condition that needs close monitoring. Cleveland Clinic says to contact your provider immediately in either case once you have regular, painful contractions (Cleveland Clinic).
Ask your provider at a late-pregnancy appointment which rule they want you to follow, so you're not guessing on the day.
What If Contractions Stay at 5 Minutes but Don't Progress?
Early labor can be long. It can start and stop, and MyHealth Alberta notes it may last up to 2 to 3 days, with contractions often irregular and 5 to 20 minutes apart (MyHealth Alberta). If contractions have been regular for a while but aren't getting stronger or closer, or you're exhausted and unsure, call your provider. They can help you decide whether to come in or keep resting at home.
Frequently Asked Questions
What is the 5-1-1 rule for contractions?
The 5-1-1 rule is a common guideline for when to call your provider or head to the hospital in labor: contractions come every 5 minutes (start to start), each lasts about 1 minute, and the pattern has continued for 1 hour.
Does 5-1-1 mean I am in active labor?
Not necessarily. A 5-1-1 pattern is a sign that labor may be well established and that it's time to call. Only an exam by your provider can tell how far your cervix has opened.
What is the difference between 5-1-1, 4-1-1 and 3-1-1?
They follow the same idea with different spacing: contractions every 5, 4 or 3 minutes, each lasting about 1 minute, for 1 hour. Your provider will tell you which one to use, based on things like whether this is your first baby and how far you live from the hospital.
Should I wait for 5-1-1 if my water breaks?
No. Call your provider or go in if your water breaks, even if you're not having contractions. The same applies to bright red bleeding, constant severe pain, or your baby moving less than usual.
Does the 5-1-1 rule apply to a second baby?
Labor is often faster after a first birth, so many providers suggest coming in earlier. Kaiser Permanente, for example, advises coming in when contractions are every 5 to 7 minutes and last at least 45 to 60 seconds if you've given birth before.
Time your contractions with our free contraction timer, and read when to go to the hospital for contractions for the full checklist. For the weeks before labor, TinyKicks helps you count kicks every day and time contractions when the day comes.
Sources
- American College of Obstetricians and Gynecologists: How to Tell When Labor Begins
- UT Southwestern Medical Center: Braxton Hicks contractions vs. true labor
- Kaiser Permanente: Labor: When to Go to the Hospital
- NHS: Signs that labour has begun
- HSE: Timing your contractions
- Cleveland Clinic: Contractions
- MyHealth Alberta: Early Stage of Labour at Home
This article is for general information only and is not medical advice. If you notice a change in your baby's movements, contact your healthcare provider right away. Read our medical disclaimer.
