The Stages of Labor

an interactive guide

The Stages of Labor

We’ve all seen the charts: early labor, active labor,transition, pushing, delivery. Clean stages. Clear dilation numbers. Predictable timelines.

Here, we’re digging into the difference between how labor is taught and how it’s actually experienced.This isn’t about throwing out core knowledge — it’sabout understanding the range of what’s normaland building a team that can respond to labor as it unfolds, not just as it’s “expected” to.

Are the stages of labor real? Or made up?

The stages are real in the sense that they represent patterns that people and providers have observed across many births. They give us helpful language and foundation of understanding. But here’s what’s not always the case: that these stages are clean, separate, or follow a strict progression. Labor can move through certain stages faster or slower. Stages can look a little different from one person or birth to another. And birth itself often doesn’t move like a staircase — it moves more like a tide.

Then why bother learning about them?

Because they give us a helpful starting point. When you understand how labor can progress, you’re more likely to recognize what’s happening in your body, stay grounded through intensity, make informed choices about comfort, position, or support, have a sense of when to rest and when to mobilize, and communicate with your team in a shared language.

Birth · Progesterone drops

Birth flips the switch “on.”

During pregnancy, the placenta makes high levels of progesterone, which acts like a brake on full milk production. When your baby and placenta are born, progesterone drops fast — and that drop releases the brake. This is why delivering the whole placenta matters for your supply.

Milk-making can't turn all the way on until the placenta is all the way out. That's why delivering every bit of it matters — if any stays behind, progesterone stays high and your milk may take a little longer to come in (among other concerns).

Highin pregnancy

↓

Lowafter birth

Holding the brake — flip to release.

Stage 2 · 2–4 days after birth

Your milk “comes in”? More like… it just “gets flowing.”

With the brake off, your body not only shifts into serious milk-making — it starts fully releasing milk. This is the "milk coming in" most people have heard about. It usually happens between 30 and 72 hours after birth, on day 2 or 3. It's common for the breasts or chest to feel fuller, firmer, or warmer. This “big flow” still produces what can seem like a small amount of colostrum — but that's the right amount for a newborn's bead-size stomach.

Clinical Name Secretory activation · Lactogenesis II‍

Sometimes people experience a slower start. The early flow of milk may may sometimes be delayed or softened by stress, medication, and/or delayed hormonal signals. It's usually temporary and may be remedied by removing milk more often. Whenever in doubt, reach out to your care team — in particular a lactation consultant (IBCLC) — for support.

Stage 3 · Around day 10

Then it becomes supply and demand.

From here on, your supply runs on a simple loop: the more milk that's removed, the more your body makes. Milk left sitting in the breast actually signals your body to slow down. Frequent, effective removal — by baby or pump — is what keeps things going.

Clinical Name Galactopoiesis

Some people decide to end lactation here, for many different reasons. Since milk is made before birth and its flow is triggered by hormonal changes, it happens whether or not someone plans to feed. From there, removing little or no milk signals the body to slow and stop. A provider or lactation professional can help you do it comfortably.

Supply meets demand

Whenever you wean

There's no one right time to wean.

Both the World Health Organization and the American Academy of Pediatrics suggest feeding your milk on its own for about the first 6 months, then continuing alongside other foods up to age 2 or beyond — for as long as it works for you and your baby.

But guidelines are a starting point, not a deadline. When and how you wean is a personal decision — it depends on your body, your baby, your life, and what you want. There's no finish line you have to reach, and no amount of milk that's “too little” to count. However long you feed, and however you choose to stop, that choice is yours.

WHO
Milk alone for ~6 months, then continued alongside foods to age 2+.

AAP
Same guidance, updated in 2022 — 2 years or beyond, as mutually desired.

Free printable

Get the one-page printable of this guide — free to download, print, and share with your clients or care team.

get the free printable

The Educated Birth