Understanding the Stages of Labor: What to Expect on Baby’s Big Day

Labour is one of those things you can read about a hundred times and still feel unprepared for. That's partly because no two labours are the same, and partly because it's hard to truly imagine something you haven't experienced.

What helps isn't a promise that it will go a certain way. What helps is understanding the structure of it — knowing that labour moves through distinct stages, each with its own purpose and its own signs, so that when you're in the middle of it, you recognise where you are.

Here's what to expect, stage by stage.

First stage: Early labour

The first stage of labour begins when your cervix starts to dilate and efface — that is, open and thin — in preparation for birth. It's typically the longest part of the process, and it's broken into two phases.

Early labour covers cervical dilation from zero to around six centimetres. Contractions during this phase are usually mild and irregular, gradually becoming more consistent over time. You may notice a bloody show or lose your mucus plug, both of which are normal signs that your body is preparing. For first-time mothers, early labour can last anywhere from several hours to a couple of days.

This phase is best spent at home. Rest as much as you can, eat light meals, stay hydrated, and try not to time every contraction obsessively — it's easy to exhaust yourself mentally before the harder work begins. If contractions start overnight, try to sleep through them for as long as possible. If it's daytime, move around gently, watch something comforting, and let things progress at their own pace.

If you're finding early contractions uncomfortable overnight, this is where good hip and lower back support makes a difference. Lying on your side with your bump supported and a pillow between your knees takes pressure off your pelvis and can help you rest more effectively between contractions.

First stage: Active labour

Active labour begins around six centimetres dilation and continues until your cervix reaches ten centimetres. This is when contractions become noticeably stronger, longer, and closer together — typically every three to five minutes, lasting around 45 to 60 seconds each.

This is the phase that requires your full focus. Many women find that the coping techniques they practised — breathing, movement, water, vocalising — become genuinely necessary here rather than optional. Lean into whatever works for you. There's no right way to labour.

This is also generally the point at which you'd head to your hospital or birthing centre if you haven't already. Your midwife or care team will advise you on when to come in based on your specific situation, but the general guide is contractions every three to five minutes, lasting a minute each, for at least an hour.

Second stage: Pushing and birth

Once your cervix is fully dilated at ten centimetres, the second stage begins. This is delivery.

You'll feel a strong, involuntary urge to push with each contraction. Your care team will guide you through this — when to push, when to breathe through a contraction, and when to rest. The second stage can last anywhere from a few minutes to a few hours depending on your body, your baby's position, and whether you've given birth before.

Many women describe this stage as intensely physical but also clarifying — there's a clarity of purpose that the earlier stages don't have. Your body knows what to do. Your job is to work with it.

And then your baby is here.

Third stage: Delivering the placenta

The third stage is the one most people don't think to prepare for, but it's still part of the labour process.

After your baby is born, you'll experience further mild contractions that help your uterus expel the placenta. This typically takes between five and thirty minutes. Most women are so focused on their newborn during this stage that they barely register it happening.

Your midwife or doctor will confirm that the placenta has been delivered completely and check that you're recovering well. If you've opted for active management of the third stage — a common recommendation in Australian hospitals — you'll be given a hormone injection shortly after birth that speeds up this process.

How to prepare

No amount of preparation removes the uncertainty of labour, but a few things genuinely help.

Understanding the process ahead of time means you're less likely to be frightened by something that's actually normal. Knowing that early labour can last a long time, for example, stops you from burning out in the first few hours. Knowing that the urge to push in second stage is involuntary means you're less likely to resist it.

Practical preparation matters too. Pack your hospital bag before 36 weeks. Include things that support comfort — a familiar pillow, snacks for after birth, lip balm for the dry mouth that comes with breathing through contractions, and anything that helps you feel settled in an unfamiliar environment.

Practise your breathing techniques before you need them. Whatever method you choose — hypnobirthing, Lamaze, box breathing — the goal is to make it automatic enough that you can access it under pressure.

Finally, talk through your birth preferences with your care team before the day. Not a rigid plan, but a clear sense of what matters to you, what your preferences are around pain relief, and who will be with you.