Knowing how to time contractions is one of the most useful skills you can have in the final weeks of pregnancy. It takes the guesswork out of “Is this it?” and helps you decide when to call your care team and when to head to the hospital. If you go too early, you may be sent home. Wait too long, and you may be rushing.
This guide walks you through how to time contractions, what the numbers mean, and the signs that mean you should call right away.
What Is a Contraction?
A contraction is a tightening of the uterus. It can feel like cramping, pressure, or a wave of tightness across your belly that may wrap around to your back. Some women describe early contractions as similar to period cramps.
In true labor, contractions gradually become stronger, longer, and closer together as your cervix opens.
How to Time Contractions, Step-by-Step
You only need a watch, a phone stopwatch, or a contraction timer app, plus paper if you like.
- Wait until you notice a few in a row. There’s no need to time every twinge.
- Note when a contraction starts, the moment you feel the tightening begin.
- Note when it ends, when the tightness fades. The time between start and end is the duration.
- Note when the next one starts. The time from the start of one contraction to the start of the next is the frequency. This is the step people most often get wrong. Don’t measure from the end of one to the start of the next.
- Keep going for about an hour and look for a pattern. Are they getting longer, stronger, and closer together?
Example: A contraction starts at 2:00 and ends at 2:01. The next starts at 2:05. That’s a 60-second contraction, 5 minutes apart.
Real Labor or Braxton Hicks?
Before real labor begins, you may have Braxton Hicks contractions, sometimes called “practice” or false labor contractions. Timing helps you tell the difference.
| Braxton Hicks | True labor | |
|---|---|---|
| Pattern | Irregular, unpredictable | Regular, and closer together over time |
| Intensity | Stays about the same or fades | Gets stronger |
| Change position or rest | Often eases or stops | Keeps going |
| Pain | Uncomfortable but usually mild | Increasingly painful, often in the lower back and belly |
If you can’t tell which you’re having, call your provider. That’s what they’re there for.
When to Go to the Hospital: The 5-1-1 Rule
A common guideline is the 5-1-1 rule. Head to the hospital or birth center when your contractions are:
- 5 minutes apart,
- 1 minute long each,
- for at least 1 hour.
Some doctors give slightly different numbers depending on your history. Kaiser Permanente, for example, suggests first-time parents go in when contractions are 3 to 5 minutes apart and last 45 to 60 seconds for an hour.
For those who have given birth before, they suggest waiting until contractions happen every 5 to 7 minutes. Labor often moves faster the second time, so if you’ve had a baby before, you may want to leave a little earlier. Follow the instructions your own doctor gave you.
Call before you leave. Early labor can last a long time, and your care team can help you decide whether to come in or wait at home a bit longer.
What Contractions Feel Like in Each Stage
Every labor is different, but these general patterns can help you make sense of your timing:
- Early labor: Contractions are mild and may feel like cramping or pressure. They’re often irregular and far apart, and you can usually still talk or be distracted through them. Rest, hydrate, and stay comfortable at home.
- Active labor: Contractions become stronger, longer (roughly 40 to 60 seconds), and closer together. You’ll likely need to stop and focus through each one. This is typically when it’s time to go in.
- Transition: Contractions are intense, often lasting 60 to 90 seconds with only a couple of minutes between them, and you may feel a strong urge to push. This is the hardest part, but it’s also the shortest.
Call Right Away If…
Don’t wait for the 5-1-1 pattern to call your doctor or go to the hospital if:
- Your water breaks (a gush or a steady trickle of fluid)
- You have vaginal bleeding beyond light spotting
- You notice your baby moving much less than usual
- You have constant, severe pain that doesn’t ease between contractions
- You have regular contractions before 37 weeks of pregnancy
- You have a fever, severe headache, vision changes, or sudden swelling
When in doubt, call. No one will be bothered that you checked.
Tips for Timing Contractions
- Use an app or a simple chart. Many free contraction timers do the math for you.
- Have a partner or support person help, so you can focus on breathing.
- Keep your care team’s number saved in your phone and on paper.
- Keep your hospital bag packed and by the door by 36 weeks or so.
- Walk, change positions, or take a warm shower if contractions are still far apart. If they fade, it’s likely early or false labor. If they get stronger, it’s likely real.
If You’re Making an Adoption Plan
If you’ve chosen adoption for your baby, timing contractions matters just as much, and there’s one extra step: let your adoption professional know when labor starts, in addition to calling your provider.
That way, the people supporting your adoption plan can be ready for you, and you won’t have to manage logistics on your own in the middle of labor. Write down (or print) your hospital plan, birth preferences, and support contacts ahead of time so they’re easy to grab.
Frequently Asked Questions
How do I time contractions?
Record when each contraction starts and ends to get its length, then measure from the start of one to the start of the next to get how far apart they are. Track a pattern over about an hour.
What is the 5-1-1 rule for contractions?
Contractions that come every 5 minutes, last 1 minute each, and continue for 1 hour. It’s a common signal that it’s time to go to the hospital or birth center.
How long should contractions last to be real labor?
Labor contractions typically last 30 seconds or longer at first and grow to about 45 to 60 seconds or more as labor progresses.
How far apart should contractions be before I go to the hospital?
Most guidelines say 3 to 5 minutes apart for first-time parents and about 5 to 7 minutes apart if you’ve given birth before, but check with your doctor for personalized advice.
Should I go to the hospital if my water breaks but I’m not having contractions?
Call your doctor right away. They’ll tell you whether to come in.
This article is for general information only and isn’t medical advice. Always follow your doctor’s or midwife’s guidance.