Contraction Timer
Accurately time your contractions during labour. Know exactly when to leave for the hospital.
What it does
- ✓One-button start/stop timing — tap when a contraction starts, tap again when it ends
- ✓Automatic frequency and duration calculation — the app shows interval between contractions and how long each one lasts
- ✓Session history — review the last 10–20 contractions in a timeline to show your doctor or midwife
How it works
- 1
Tap Start when a contraction begins
The timer starts automatically and records the start time.
- 2
Tap Stop when the contraction ends
Duration is recorded. The app immediately starts counting the interval to the next contraction.
- 3
Watch the pattern
The app highlights when contractions reach the 5-1-1 threshold so you know it is time to go to hospital.
Frequently asked questions
What is the 5-1-1 rule for contractions?
Go to the hospital when contractions are 5 minutes apart, each lasting at least 1 minute, for at least 1 hour. This is the standard guideline for term pregnancies. Your doctor may give you a different threshold based on your history.
How do I tell the difference between Braxton Hicks and real contractions?
Braxton Hicks contractions are irregular, do not increase in frequency or intensity, and usually stop if you change position or drink water. True labour contractions get longer, stronger, and closer together over time regardless of activity.
How should I time contractions?
Start timing from the beginning of one contraction to the beginning of the next — that is the interval (frequency). The duration is from the start to the end of a single contraction. The Janani timer measures both automatically.
When should I call my doctor instead of going straight to hospital?
Call your doctor immediately if: contractions are very painful before 37 weeks (preterm labour), you have heavy bleeding with contractions, baby movements have reduced, or you have a history of fast labours.
Can I use the contraction timer before my due date?
Yes — it is useful from 36 weeks onwards to track practice contractions and be prepared. If you notice regular contractions before 37 weeks, contact your doctor immediately as this may indicate preterm labour.
Contraction Timer is part of the Janani app — free to download on Android.