Contraction Timer
Tap start when a contraction begins and stop when it ends. This builds a live log of duration and frequency so you can see your pattern.
Not a diagnosis. If you’re unsure whether you’re in labor, in pain, or notice bleeding or reduced movement, call your provider or go in — don’t wait on a pattern to confirm it first.
Contraction log
| # | Started | Duration | Since previous |
|---|
This log lives only in your browser tab for this session — it clears if you reload the page. Jot down times separately as a backup if you’re heading to the hospital.
How to time contractions and know when to go
Quick answer: Time each contraction’s duration (how long it lasts) and frequency (time from the start of one contraction to the start of the next). Many providers use the 5‑1‑1 rule: contractions 5 minutes apart, lasting 1 minute each, for at least 1 hour, as a general guide for heading to the hospital or birth center.
Frequency and duration mean different things. Frequency is measured start-to-start, not end-to-start — so if a contraction starts at 2:00 and the next starts at 2:05, that’s a 5‑minute frequency, even if the first one only lasted 45 seconds. Duration is simply how long each contraction lasts, from when the tightening begins to when it fully releases.
Braxton Hicks contractions, sometimes called practice contractions, tend to be irregular, don’t get consistently closer together, and often ease up if you change position or rest. True labor contractions typically build steadily: closer together, longer, and stronger over time, and don’t stop with rest.
Rough timing guide by stage
| Stage | Frequency | Duration | What to do |
|---|---|---|---|
| Early labor | 5–15 min apart | 30–45 sec | Rest, hydrate, stay home |
| Active labor | 3–5 min apart | 45–60 sec | Call your provider, prepare to go in |
| Transition | 2–3 min apart | 60–90 sec | You should already be at your birth location |
These ranges are general guidance, not fixed rules — every labor is different, and your provider may give you different numbers based on your history and how far you live from the hospital.
Frequently asked questions
What is the 5‑1‑1 rule?
It’s a common guideline: head to the hospital or birth center when contractions are 5 minutes apart, lasting 1 minute each, consistently for at least 1 hour. It’s a helpful reference point, not a strict rule — always confirm with your provider.
Is contraction frequency measured start-to-start or end-to-start?
Start-to-start. Frequency is the time from when one contraction begins to when the next one begins, which includes both the contraction itself and the rest period after it.
How do I tell real labor from Braxton Hicks?
Braxton Hicks contractions are usually irregular, don’t consistently get closer together, and often calm down with rest or a position change. True labor contractions tend to build steadily and continue regardless of what you do.
Should I go to the hospital sooner if this isn’t my first baby?
Many providers recommend going in sooner for later pregnancies, since labor often progresses faster. Ask your provider in advance what pattern they want you to use for your specific situation.
What if my contractions are irregular or stop?
That’s common in early labor and with Braxton Hicks contractions. Keep tracking, rest, and stay hydrated. Call your provider if you’re unsure, in significant pain, or notice bleeding or reduced fetal movement.
Does this timer save my log if I close the page?
No, the log only exists in your browser tab for that session and clears on reload. Keep a backup note of contraction times if you’re getting close to heading in.
Does this tool replace calling my doctor or midwife?
No. It’s here to help you organize what you’re feeling into a clear pattern. Always call your provider if you think you’re in labor or have any concerns, regardless of what the timer shows.