Contractions at the end of pregnancy: Braxton Hicks, early labour, waters breaking and when to call maternity

Short answer: at the end of pregnancy, one isolated or irregular contraction cannot tell you on its own whether labour has started. Braxton Hicks contractions can be uncomfortable and sometimes painful, while true labour is mainly recognised by change over time: contractions becoming more regular, closer together and stronger, together with cervical change. Waters breaking, vaginal bleeding, reduced fetal movement, severe continuous pain, or contractions before 37 weeks are reasons to contact your maternity team promptly. If you are unsure, call your maternity unit: the individual instructions given by your own team take priority over any general rule.

The end of pregnancy often brings ambiguous signals. Your abdomen tightens, a pain feels like a period cramp, your pelvis feels heavy, your mucus plug may change, sleep becomes lighter, and every new sensation raises the same question: “Is this it?” The trap is looking for one single sign that can provide the answer. In reality, the beginning of labour is a process and it can be gradual.

This guide mainly applies to term pregnancies without a known complication. If your team has given you specific instructions because of a low lying placenta, multiple pregnancy, a previous very fast birth, risk of preterm birth, high blood pressure, diabetes, or any other individual circumstance, follow those instructions rather than the general guidance below.

What a uterine contraction actually is

The uterus is a muscle. When it contracts, it becomes firmer for a period and then relaxes. The sensation may be described as an abdomen that goes hard, a squeezing pressure, period type cramps, pelvic pressure, or pain that begins in the back and moves forwards. Two women can use very different words to describe a similar contraction.

Pain is therefore not a reliable enough test by itself. The American College of Obstetricians and Gynecologists notes that Braxton Hicks contractions can themselves be very painful. Conversely, some women describe early true labour as still manageable. Clinicians are more interested in how the pattern, duration and intensity evolve and, during a clinical assessment, whether the cervix is changing. [1]

France’s Haute Autorité de Santé also distinguishes different phases of labour and emphasises individualised care. Labour is not a sequence of identical numbers for every woman. [2]

Braxton Hicks: contractions that are not imaginary

Braxton Hicks contractions are sometimes called “false contractions”. That phrase can make them sound unreal. They are real uterine contractions. What distinguishes them from established labour is the absence of a regular progression towards established labour and cervical opening.

In practice, they are often irregular, with no clear tendency to become closer together or progressively stronger. They can occur for several weeks. They may also vary with activity, time of day or position. ACOG notes that they may settle with rest, hydration, walking or a change of position depending on the situation, whereas labour contractions tend to continue and develop a pattern. These are clues, not foolproof home tests. [1]

In other words, drinking a glass of water and lying down cannot “diagnose” false labour. If contractions continue, become regular, another concerning sign appears, or you simply feel that something has changed, call your maternity unit.

True labour: look for progression rather than one contraction

French Assurance Maladie describes spontaneous labour as contractions that become progressively stronger and more regular over the hours, sometimes with rupture of the membranes. [3] ACOG similarly describes labour contractions as developing a pattern, coming closer together and becoming stronger. [1]

NICE notes that the early or latent phase can include contractions and cervical change without being continuous. A woman can have a period of contractions followed by a quieter period before labour establishes. Established labour combines regular contractions with progressive cervical dilatation. [4]

This helps explain why two simple pieces of advice can sound contradictory: “wait until they are regular” and “call if you are unsure”. The first helps you observe a trend. The second prevents a general rule from becoming a barrier to getting advice.

The latent phase can be long and irregular

Early labour is not always an abrupt switch from no contractions to a perfectly organised pattern. NICE specifically recognises that the latent phase may not be continuous. Some women have several hours of contractions followed by calmer periods. That can feel confusing if you expected a linear progression.

This phase is neither a failure nor a “false start” in the sense that you misread your body. It is a period in which the cervix may begin to change and labour can gradually organise. Whether you need an assessment depends on the whole clinical context, not just how long you feel able to wait at home.

If your maternity team advises you to remain at home because you and your baby are well and there are no warning signs, conserve your energy. Eat if you feel able, drink normally, rest between contractions and ask for support. If pain becomes difficult to manage or something worries you, call again.

The five minute rule is not a universal law

You may have heard: “go in when contractions are five minutes apart.” The NHS does use five minutes as a common threshold for calling a maternity unit. [5] But that number is not a universal rule for every woman, every maternity service or every situation.

Distance from hospital, a previous rapid labour, whether you have given birth before, an individual medical issue and local protocols can all change the advice. Some maternity units ask you to call before travelling. Others give personalised instructions during antenatal appointments.

The more useful rule is this: know the number for your maternity unit and the instructions you have been given. When contractions change, use those instructions first. Our guide to preparing a birth plan can also help you decide which practical questions to discuss with the team in advance.

How to time contractions without staring at your phone for an hour

If contractions seem to be repeating, note for a while when each one starts, roughly how long it lasts, and the interval from the start of one contraction to the start of the next. The aim is not to produce a perfect chart. It is to see whether a trend is developing.

If timing contractions makes you more anxious without helping, stop and call the maternity unit. A conversation with a midwife is more useful than treating an app as a diagnostic tool.

Waters breaking changes what you should do

Rupture of the membranes can be a large gush or a gradual leak. It is not always easy to distinguish amniotic fluid from vaginal discharge or urine. French Assurance Maladie says that if your waters break spontaneously at home, you should go to the maternity unit even if contractions are not yet strong. [3]

The NHS also advises contacting the maternity unit when the waters break. It recommends using a pad rather than a tampon and reporting fluid that is smelly, coloured or accompanied by bleeding. [5]

If you think your waters have broken, note the approximate time, the appearance of the fluid and your baby’s movements, then contact your maternity unit and follow its instructions. Do not try to perform your own vaginal examination to “check the cervix”.

What if I am not sure whether it is amniotic fluid?

This is a common uncertainty. Urine leakage can happen late in pregnancy and vaginal secretions can increase. Appearance alone does not always settle the question. NICE recommends clinical assessment when rupture of membranes is suspected, particularly before term. [6]

The aim at home is therefore not to perform improvised tests. Call the maternity unit, describe what you noticed and let the team decide whether an assessment is needed.

The mucus plug is not a countdown clock

The “show” described by the NHS is thick mucus that can look pink or slightly blood streaked as the cervix changes. It may come away all at once or in several pieces. Labour may follow soon, but it can also take several days. Some women never notice it. [5]

So losing the mucus plug does not mean “I will give birth today”. However, true vaginal bleeding should not automatically be dismissed as the mucus plug.

Red bleeding late in pregnancy: do not wait and see

French Assurance Maladie is clear that vaginal bleeding in the second or third trimester is abnormal and requires urgent assessment. [7] A small amount of pink mucus as the cervix changes is not the same as red bleeding or a meaningful blood loss.

If you are unsure what you are seeing, contact the maternity unit immediately. Do not delay the call while waiting for contractions to become regular.

Your baby’s movements remain important regardless of contractions

The onset of labour does not make fetal movement irrelevant. NICE recommends asking about the baby’s movements during an assessment for labour. [4] The NHS advises urgent contact if the baby is moving less than usual. [5]

Every baby has an individual pattern. The aim is not to apply an arbitrary number found online. If you notice a clear reduction or change from your baby’s usual pattern, contact your maternity unit without waiting for the contraction pattern to look “serious enough”.

Before 37 weeks: the threshold for calling should be lower

Before 37 weeks, regular contractions or tightenings, period type pain, pelvic pressure, unusual backache, a change in vaginal discharge or leaking fluid can be signs of preterm labour. They may be only mildly painful. ACOG and the NHS advise prompt contact with obstetric services in this situation. [8, 9]

NICE recommends a specific clinical assessment when symptoms suggest preterm labour because symptoms alone cannot confirm or exclude the diagnosis. [6]

Do not reassure yourself solely because “it does not hurt much”. Before term, repeated or regular tightenings deserve advice.

Continuous severe pain is not the usual pattern of a contraction

A contraction normally rises, peaks and then eases. Severe abdominal pain that remains between contractions, a persistently very tender or hard abdomen, faintness, breathing difficulty or bleeding requires urgent assessment.

ACOG includes severe constant pain with no relief between contractions among reasons to go to hospital. [1] French Assurance Maladie also describes sudden permanent uterine pain in the context of some late pregnancy bleeding as a warning sign. [7]

What you can do during a very early phase when there are no warning signs

If you are at term, the membranes appear intact, your baby is moving as usual, there is no bleeding and your maternity unit has advised you to stay home for now, the main aim is to conserve energy.

Drink normally, eat if you can, rest, change position according to comfort, take a shower if it feels good and keep your support person nearby. NICE recommends individualised support for women with painful contractions who are not yet in established labour. [4]

You do not need to force labour to progress. Climbing stairs for hours, walking to exhaustion or trying every social media method can simply leave you tired.

Three practical scenarios

Scenario 1: irregular contractions at 39 weeks

Your abdomen tightens several times during the evening. There is no clear pattern, some are uncomfortable, and they become less frequent when you rest. Your baby is moving normally and there is no fluid loss or bleeding. This can fit with practice contractions or a very early phase. Observe according to your maternity unit’s guidance and call if the pattern changes or you need reassurance.

Scenario 2: fluid loss without strong contractions

You notice fluid that you cannot control, but contractions are weak or absent. Do not wait for contractions to become painful. French Assurance Maladie advises going to maternity after rupture of the membranes even when contractions are not yet intense. [3]

Scenario 3: regular tightenings at 35 weeks

The sensations are not very painful but repeat regularly and are accompanied by unusual pelvic pressure. Before 37 weeks this deserves prompt contact with the maternity unit. Mild pain does not exclude preterm labour. [8, 9]

Home methods to start labour: be cautious

Social media offers many methods: particular foods, nipple stimulation, intense exercise, sex, oils, herbs or supplements. Their evidence and safety are not equivalent and depend on your individual circumstances.

Do not use a method intended to provoke contractions without discussing it with your healthcare professional, particularly if there is any complication or special consideration in your pregnancy. “Natural” does not automatically mean harmless. This article does not provide a home induction method.

First baby or later birth: advice can differ

Labour can be quicker after a previous birth, but this does not allow anyone to predict an exact duration. If you previously had a very rapid labour, tell your maternity team and ask for individual guidance before term.

Distance matters too. Someone who lives ten minutes from maternity has different logistics from someone with a long journey. Planning the route, the phone number and childcare for older children is often more useful than searching for the “perfect” contraction interval.

Our maternity bag checklist can help separate this practical preparation from interpreting signs of labour.

How to call the maternity unit effectively

You do not need medical vocabulary. Simply give your gestational age, whether you have given birth before, what you are feeling, how long it has been happening, the approximate contraction pattern, whether you think your waters have broken, whether there is bleeding and whether your baby is moving as usual.

Also mention any specific instructions given during pregnancy. The team may ask further questions. The purpose of the call is not to prove that you are in labour, but to get advice appropriate to your situation.

A simple decision tree that does not rely only on numbers

1. Is there a warning sign? Waters breaking, bleeding, reduced fetal movement, severe continuous pain, significant faintness or symptoms before 37 weeks: contact maternity promptly.
2. No warning sign, but are contractions changing? Watch for increasing regularity, closeness and intensity.
3. Have you been given individual instructions? Follow them first.
4. Still unsure? Call. Uncertainty itself is a valid reason to ask for advice.

This is an organisational aid, not a medical triage device. It does not replace assessment by your maternity team.

What to prepare before the first contractions

Save the phone number for the delivery suite or service your maternity unit has given you. Check the route and alternatives. Keep your maternity records together. Tell your support person what you would like them to do if you are focused on contractions: call, gather the bags or contact whoever is looking after older children.

If you have written birth preferences, keep an accessible copy. A birth plan cannot predict labour, but it may make communication easier once you arrive.

Why it is reasonable to call even when you are not sure

Many women hesitate because they worry about “bothering” staff or being sent home. Triage is part of maternity care. NICE explicitly recognises telephone or face to face assessment depending on the situation and recommends clear advice about when to make contact again. [4]

Being assessed and then returning home because labour is not established is not a failure. It simply means that the assessment at that time did not indicate admission. If contractions change or a new sign appears, the situation can be reassessed.

When should you contact maternity without waiting?

Contact your maternity unit or obstetric emergency service without delay for fluid loss suggesting rupture of membranes, vaginal bleeding late in pregnancy, reduced or changed usual fetal movement, contractions or labour signs before 37 weeks, severe continuous abdominal pain, significant faintness or any symptom for which your team has given you an urgent instruction. [1, 5, 7, 8, 9]

If you cannot reach your maternity service and the situation appears urgent, use the appropriate emergency number. In France, 15 and 112 provide urgent medical assistance.

Key points

• A painful contraction is not automatically a labour contraction.
• True labour is mainly recognised by progression in the contraction pattern and cervical change.
• The five minute rule is a common guide, not a universal law.
• Waters breaking warrants contact with maternity even if contractions are not strong.
• Late pregnancy bleeding and reduced fetal movement need prompt assessment.
• Before 37 weeks, regular contractions or other labour signs should be reported promptly.
• If in doubt, call your maternity team rather than trying to diagnose labour yourself.

Frequently asked questions

Can Braxton Hicks contractions hurt?

Yes. ACOG notes that they can be very painful for some women. Pain alone cannot reliably distinguish practice contractions from true labour. Watch how the pattern changes and call your maternity team if worried. [1]

Does one contraction every ten minutes mean labour has started?

Not necessarily. One interval is not enough. Look for increasing regularity and a shortening interval, and follow your own maternity unit’s advice.

Must I wait until contractions are five minutes apart before going in?

No. It is one commonly used guide, but waters breaking, bleeding, reduced fetal movement, preterm labour or individual instructions may require earlier contact.

Can I be in labour without severe pain?

Yes, especially at the beginning. Pain perception varies widely. Before 37 weeks, regular or frequent tightenings may also be only mildly painful. [8, 9]

How can I tell if my waters broke or I leaked urine?

It is not always possible to tell at home. If you suspect ruptured membranes, contact the maternity unit so it can decide whether assessment is needed.

Do waters always break in one large gush?

No. It may be a large gush or a slow trickle. The NHS advises contacting maternity and reporting coloured, smelly or blood stained fluid promptly. [5]

Does losing the mucus plug mean I will give birth today?

No. Labour may follow quickly or several days later. Some women never notice the plug. [5]

Should I walk to make labour progress?

You can move according to comfort if your team has not restricted activity, but there is no need to exhaust yourself trying to accelerate labour.

Can contractions stop and start again?

Yes. The latent phase can be intermittent. A quieter period does not mean the earlier contractions were imaginary. [4]

When should I call if this is my second baby?

Ask your maternity unit for personalised advice, especially if your first labour was fast or you live far away. A standard interval cannot capture your whole history.

Is a little blood with the mucus plug normal?

Pink or lightly blood streaked mucus can be a show. True vaginal bleeding late in pregnancy requires urgent assessment. If unsure, call. [5, 7]

What if my baby moves less during contractions?

Contact maternity promptly. A reduction in your baby’s usual movements is a reason for assessment regardless of the contraction pattern. [5]

Are regular contractions at 36 weeks normal?

Before 37 weeks, regular or frequent contractions may be a sign of preterm labour and should be reported promptly. [8, 9]

Can I check myself whether my cervix is opening?

Not reliably or safely. Do not perform your own vaginal examination. When necessary, clinicians assess the cervix in an appropriate clinical setting.

Are very strong but irregular contractions dangerous?

Perceived strength alone does not answer the question. If contractions are very painful, unusual, accompanied by another sign, or you are worried, contact your maternity unit.

What should I note before calling maternity?

Your gestational age, when symptoms began, the approximate pattern, any fluid or blood loss, fetal movement and any special instructions you were given. Do not delay an urgent call just to collect all of this information.

Conclusion

Late pregnancy becomes easier to interpret when you stop looking for one definitive signal. Braxton Hicks can be strong. True labour can begin gently. The mucus plug is not a countdown timer. The five minute rule is not universal. What matters is how the whole pattern evolves in your individual context.

Prepare the useful phone numbers, know your maternity unit’s instructions and remember the signs that require prompt contact. You do not need to become your own midwife: when uncertainty persists, contacting the team is exactly what maternity triage is for.

Sources and bibliography

Sources checked on 14 September 2026. International guidance complements the French framework but does not replace advice from your own maternity service.

1. American College of Obstetricians and Gynecologists. How to Tell When Labor Begins. Last reviewed November 2025.
2. Haute Autorité de Santé. Normal childbirth: support of physiology and medical interventions. Updated November 2023.
3. Assurance Maladie. Comment se déroule un accouchement ?. French source, updated 2026.
4. NICE. Intrapartum care, guideline NG235. United Kingdom. Updated June 2026.
5. NHS. Signs that labour has begun. United Kingdom.
6. NICE. Preterm labour and birth, guideline NG25. United Kingdom. Updated 2022.
7. Assurance Maladie. Saignements gynécologiques lors du deuxième et du troisième trimestre de la grossesse. French source, updated 24 June 2026.
8. American College of Obstetricians and Gynecologists. Preterm Labor and Birth. United States.
9. NHS. Premature labour and birth. United Kingdom.

Written by Confort Enceinte. General information only. This guide does not replace assessment of your pregnancy or instructions from your maternity team. If you are unsure or notice an unusual sign, contact a healthcare professional.