When labor starts, one of the first questions on everyone’s mind is simple: when do we actually go? The 5-1-1 rule is the shorthand many providers use to answer it. It’s a memorable way to know when contractions have likely become established labor — but it’s a guide, not a law. Understanding what it means, and just as importantly what overrides it, can help you make the call with confidence.
What 5-1-1 means
The 5-1-1 rule breaks down into three easy-to-remember parts. For a full-term pregnancy, it points to contractions that are:
- 5 minutes apart — measured from the start of one contraction to the start of the next
- 1 minute long — each contraction lasts around 60 seconds
- 1 hour — the pattern holds steady for at least an hour
When all three line up, contractions have usually settled into a regular, working rhythm rather than the scattered tightenings of early labor or practice contractions. For many people, that’s the cue to head to the hospital or birth center.
The 4-1-1 variation
Some providers use 4-1-1 instead. It’s the same concept, just a little closer together: contractions about every 4 minutes, lasting 1 minute, sustained for 1 hour. Neither number is universally “correct” — which one your provider recommends can depend on whether it’s your first baby, how quickly your previous labors went, and how far you live from where you’re giving birth.
| Rule | Contractions apart | Each lasts | Sustained for |
|---|---|---|---|
| 5-1-1 | About 5 minutes | About 1 minute | At least 1 hour |
| 4-1-1 | About 4 minutes | About 1 minute | At least 1 hour |
The takeaway: ask your provider which pattern they want you to watch for, and write it down somewhere easy to find when the moment comes.
Your provider’s advice comes first
A tidy formula is reassuring, but it can’t account for your particular situation — and it isn’t meant to. Your provider’s specific instructions and your distance from the hospital matter more than any rule. If you live an hour away, if your last labor was fast, or if you have a condition that needs closer monitoring, your care team may want you to come in well before a textbook 5-1-1 pattern appears. The rule is a starting point for conversation, not a substitute for the guidance built around your pregnancy.
Knowing exactly how far along you are helps here too. The due date calculator shows how close you are to term, which shapes how any contraction pattern should be read — the same rhythm means something very different at 34 weeks than at 40.
Go in or call right away — regardless of the clock
Some signs mean you should head in or call immediately, no matter what your contractions are doing. Don’t wait for 5-1-1 if any of these happen:
- Your water breaks — note the time, and the color and amount of fluid
- You have vaginal bleeding beyond light spotting or bloody show
- You feel your baby moving less than usual
- You have severe or constant pain that doesn’t ease between contractions
- You’re less than 37 weeks and having regular contractions, which can be a sign of preterm labor
- Something simply feels wrong — trust that instinct
These aren’t reasons to panic; they’re reasons to pick up the phone. Your team would always rather you called and were reassured than waited at home worrying.
Timing contractions accurately
The 5-1-1 rule only works if your timing is accurate, and that’s harder than it sounds when you’re focused on breathing through each wave. Measure from the start of one contraction to the start of the next to get the gap between them, and note how long each one lasts. Judge by several contractions in a row, not a single one — real labor can be a little uneven as it builds. A contraction timer records each contraction and shows at a glance whether you’ve reached a steady 5-1-1 or 4-1-1 pattern, so you can spend your energy on coping instead of clock-watching.
The 5-1-1 rule is a genuinely useful anchor in a moment that can feel uncertain. Learn it, know its 4-1-1 cousin, and keep the bigger picture in mind: your provider’s plan, your distance from care, and the warning signs that trump any number. Get those straight ahead of time, and you’ll know exactly what to do when labor finally arrives.