Contraction pattern checker
Log contractions and check whether the timing looks early, active, or mixed. See the pattern clearly without treating it as a diagnosis.
Contraction pattern checker
Log each contraction as it begins and ends. The checker compares duration, spacing, and regularity to show whether the recorded pattern looks early, active, or mixed.
What the contraction pattern checker tells you
A contraction pattern checker organizes the timing you enter and gives the overall pattern a simple label. It looks at whether contractions are becoming longer, closer together, and more consistent.
An early-looking pattern is generally less settled. An active-looking pattern shows a clearer, more regular trend. A mixed result means the entries do not point consistently in either direction.
These labels describe the log, not your cervix or stage of labor. Only an examination by your maternity team can assess cervical change, and some people have important labor symptoms without a textbook timing pattern.
Use the result as a concise summary of what has been happening. If you call your provider, the recorded start times, durations, and spacing may be more useful than trying to remember the pattern while managing contractions.
How to log contractions accurately
- Start the timer when you notice the contraction beginning, not when it becomes strongest.
- Stop it when the tightening, pressure, or wave has clearly eased.
- Rest between contractions and repeat the same process when the next one begins.
- After several complete entries, review the pattern label and the individual records.
Duration runs from the beginning to the end of the same contraction. Spacing is usually measured from the beginning of a contraction to the beginning of the next one.
If you start late, stop early, or miss a contraction, keep going. A small timing error does not require deleting the whole log. Edit or remove an entry if it is clearly accidental, but avoid adjusting normal variation merely to make the pattern look regular.
What early, active, and mixed patterns mean
An early result means the recorded contractions appear less regular, more spread out, or less consistent in duration. They may settle down, remain variable, or develop into a clearer pattern.
An active result means the log has become more regular and shows a stronger progression in timing. It does not confirm active labor, predict when birth will happen, or replace instructions from your clinician.
A mixed result means some features look more established while others remain variable. For example, contractions might seem closer together but still vary noticeably in duration, or they may last similarly while the gaps remain uneven.
No label should overrule how you feel. Intensity, pressure, an urge to push, fluid loss, bleeding, fetal movement, medical history, and travel time to your planned place of birth all matter even though a timer cannot interpret them fully.
Contraction patterns at a glance
Read the label alongside the actual log. The table explains what each result says about the recorded timing and what it cannot establish.
| Checker result | What the log may look like | Practical response |
|---|---|---|
| Early | Timing is variable or has not formed a sustained trend. | Keep observing if you are comfortable, and follow your care plan. |
| Active | Contractions show a clearer pattern in spacing and duration. | Review your provider’s instructions and contact the maternity team when advised. |
| Mixed | Some timing features are consistent while others remain irregular. | Continue logging, but base calls on symptoms as well as the pattern. |
| Not enough information | The available entries do not show a meaningful trend. | Record more complete contractions if it is safe and comfortable to do so. |
A changing result is normal because the checker recalculates from the information available. A shift from active-looking back to mixed does not prove labor has stopped; it only means the recent timing is less consistent.
When not to rely on the checker
The checker cannot diagnose labor, assess your baby, measure cervical dilation, or determine whether it is safe to stay home. It also cannot account for pregnancy complications, previous rapid labor, induction instructions, planned cesarean birth, or advice tailored to your medical history.
Contact your maternity team promptly if your water may have broken, you have bleeding, your baby is moving less than usual, pain is severe or unusual, you feel an urge to push, or you are worried. For reduced movement, follow the instructions given by your own care team rather than waiting for the contraction pattern to change (Cleveland Clinic, 2026).
Call emergency services for an emergency or when you cannot safely reach maternity care. If your provider has given you a specific call or arrival plan, that plan takes priority over any result shown here.
Make the log easier during stronger contractions
Before contractions demand your full attention, decide who will handle timing. A birth partner can watch for your cue, operate the timer, and read the pattern back without asking you to remember every start and stop.
Keep the device charged and within reach. If using a phone becomes distracting, pause the log and focus on comfort, safety, and communication with your care team. Missing an entry is less important than getting the support you need.
Contraction Timer IO is available as a free web timer and on iPhone, Apple Watch, and Android. The same basic logging approach applies: mark the beginning, mark the end, and review the trend rather than focusing on an isolated contraction.
When speaking with your provider, describe symptoms in plain language and share the log if requested. Mention changes in intensity, pressure, fluid, bleeding, movement, or your ability to talk and move through contractions, because timing alone gives an incomplete picture.
Frequently asked questions
How many contractions should I time before checking the pattern?
Log enough complete contractions to reveal whether spacing and duration are settling into a repeatable trend. We do not have a sourced universal number that works for every labor. A short log may change quickly, so continue timing when comfortable and follow any call instructions already provided by your maternity team.
Can a contraction pattern checker tell me if I am in active labor?
No, it can only show whether your recorded timing looks active. Active labor is a clinical assessment that may include symptoms, cervical change, and your individual circumstances. Treat the result as a summary for you and your provider, not as confirmation that labor has reached a particular stage.
What does a mixed contraction pattern mean?
A mixed pattern means the logged contractions do not show one clear trend. Some may be similar in duration while their spacing varies, or the spacing may tighten without staying consistent. Keep watching the overall pattern, but contact your maternity team based on symptoms and your care plan rather than waiting for a different label.
How do I time the length and spacing of a contraction?
Time duration from when a contraction begins until it ends. Measure spacing from the beginning of one contraction to the beginning of the next. Start and stop as consistently as you can, but do not worry about small errors during an intense contraction; the broader trend is more useful than perfect tapping.
Will Braxton Hicks contractions show as an early pattern?
They may produce an early or mixed-looking log, but the checker cannot identify Braxton Hicks contractions. Timing alone cannot determine why the uterus is tightening. If contractions persist, become stronger, or come with other symptoms, use your provider’s guidance and contact the maternity team if you are uncertain.
What should I do if I miss a contraction while timing?
Continue with the next contraction rather than guessing the missing times. A gap in the record may temporarily make the result less clear, but an invented entry can distort duration and spacing. Tell your provider that part of the log is incomplete if you share the history.
When should I call my hospital or birth center?
Call according to the personalized instructions from your maternity team. Contact them sooner for possible fluid loss, bleeding, reduced fetal movement, severe or unusual pain, an urge to push, or anything that worries you. Do not wait for the checker to display an active result when symptoms suggest you need help.
How to use this pattern
This checker records contraction patterns; it cannot diagnose active labour or confirm cervical change.
A common 5-1-1 pattern is only a cue to contact your maternity team, so always follow your own midwife or obstetric unit’s instructions.
- 5 minutes apart, measured start to start
- About 60 seconds per contraction
- For roughly 1 hour
Seek urgent advice if waters break, bleeding occurs, movements reduce, contractions begin before 37 weeks, one lasts over 2 minutes, or there are at least 6 in 10 minutes; see NHS guidance.