How Do I Know Labour Is Starting?

Early Signs of Labour, What’s Normal, and When to Seek Support

One of the most common questions people search for in late pregnancy is:“How do I know if labour is starting?”

And it makes sense. Labour doesn’t usually begin with a dramatic moment like your see on TV or in the movies, for many people, it starts quietly, gradually, and with sensations that are unfamiliar rather than obviously “labour-like”.

This uncertainty can feel unsettling, especially when you’re trying to work out whether what you’re noticing is meaningful, normal, or something to act on.

This post walks through the early signs of labour, what often causes confusion, and how to feel more grounded as things begin to change.

How do I know when labour is starting and why it can be hard to tell.

Labour doesn’t follow a script.

Clinical guidance recognises that the early part of labour can be variable and unpredictable. UK guidance describes early labour as a time when contractions may be irregular and cervical change is happening slowly and gradually.

As the NICE intrapartum care guideline explains, early labour can involve contractions that “may be irregular, variable in intensity and not yet established,” which is why it can feel difficult to interpret what’s happening.

This variability is normal

Common early signs of labour

Early labour often shows up as changes rather than strong contractions. You might notice one or more of the following:

• Changes in sensation

You may feel period-like cramps, a heavy or achy feeling low in your pelvis, or a dull backache. These sensations can come and go and may feel manageable at first.

Research into labour physiology shows that these early sensations often reflect the uterus beginning to work and the cervix softening and changing, rather than labour being “fully established”.

• Tightenings or mild contractions

Some people notice their uterus tightening and releasing. These may feel irregular at the start and may not follow a clear pattern yet.

• Changes in discharge

An increase in vaginal discharge is common as the cervix begins to soften and open. This may include the mucus plug, which can come away all at once or gradually over time.

Evidence-based information highlights that losing the mucus plug does not reliably predict when labour will start, it’s simply one sign that cervical changes are happening.

• A sense of “something happening”

Many people describe a subtle feeling that things are changing - a sense of inward focus, restlessness, or wanting to slow down.

Studies exploring people’s experiences of early labour consistently describe this internal, intuitive awareness as part of the transition into labour, even when physical signs are still mild.

What often isn’t labour (but causes confusion)

Late pregnancy brings lots of sensations that can feel significant without meaning labour has started.

These can include:

• Braxton Hicks tightenings

• Pelvic pressure as baby moves lower

• General discomfort or disturbed sleep

• Twinges, aches, or cramping that settle with rest

Clinical guidance notes that these experiences are common in the weeks leading up to labour and are not a sign that something is wrong. They are part of the body preparing.

Early labour vs established labour

Early labour tends to be:

• Irregular

• Mild to moderate in intensity

• Changeable

• Manageable with rest, movement, or comfort measures

As labour becomes established, contractions usually:

• Become more regular

• Grow stronger over time

• Last longer and come closer together

• Require more focus and coping strategies

The Birthplace in England study and wider physiological research both emphasise that labour usually builds gradually, rather than switching on suddenly.

When to seek advice or support

It’s always okay to ask for guidance if you’re unsure.

You might consider contacting your midwife or maternity unit if:

• Contractions are becoming regular and stronger

• You’re finding it hard to cope

• Your waters break

• You notice reduced baby movements - babies do not stop moving during labour. Reduced movements are something that your midwife would like to know about.

• You feel worried - even if you can’t quite explain why.

A gentle reassurance

Not knowing exactly when labour is starting doesn’t mean you’re unprepared or doing anything wrong.

Physiological birth research consistently shows that labour works best when people feel safe, supported, and unhurried and that includes the early stages.

Preparation is about understanding what’s normal, knowing when to seek reassurance, and feeling supported as things unfold. If you’re preparing for birth and want to build that sense of steadiness and understanding, calm, evidence-based preparation can help, especially when it supports both the body and the nervous system.

Hi, I'm Joy - an antenatal educator, perinatal hypnotherapist and breastfeeding counsellor supporting expectant parents across West Lothian and online. I focus on calm, practical, evidence-based support for pregnancy, birth and early parenthood. For more information about the support I offer, go to: www.birthprepwithjoy.com