The three stages of labor are dilation of the cervix, delivery of the baby, and delivery of the placenta. The first stage is by far the longest, often lasting 12 to 20 hours or more for a first birth. The second stage (pushing) can take anywhere from a few minutes to a few hours. The third stage, delivering the placenta, is typically the shortest, usually finishing within 5 to 30 minutes.
First Stage: Cervical Dilation
The first stage begins when contractions start thinning and opening your cervix and ends when the cervix reaches 10 centimeters of dilation. This stage has three distinct phases: early labor, active labor, and transition. Each feels different and requires a different level of focus.
Early Labor (0 to 6 cm)
Early labor is the longest and least intense phase. Your cervix gradually opens from 0 to about 6 centimeters while contractions build in strength and regularity. Many people spend this phase at home, going about light activities, resting, or timing contractions. It can last hours or even a full day. For first-time mothers, the upper limit of normal for this latent phase is roughly 20 hours. For those who have given birth before, it’s closer to 14 hours.
About 10% of people who appear to be in early labor are actually experiencing false labor, where contractions eventually stop on their own. This is one reason care providers often recommend staying home during this phase until contractions become more predictable. A common guideline: head to the hospital when contractions come every 3 to 5 minutes, last 45 to 60 seconds each, and hold that pattern for at least an hour. If you’ve had a baby before, the threshold is a bit more relaxed, around every 5 to 7 minutes, because things tend to move faster.
Several factors can slow early labor. Excess stress triggers adrenaline, the body’s fight-or-flight hormone, which can cause contractions to stall or become irregular. Obesity and infection of the membranes surrounding the baby are also associated with a longer latent phase.
Active Labor (6 to 10 cm)
The American College of Obstetricians and Gynecologists defines active labor as beginning at 6 centimeters of dilation. This is the point where the cervix typically starts opening faster and contractions become longer, stronger, and closer together. Most people are admitted to the hospital or birth center during this phase if they haven’t been already.
Your body ramps up oxytocin production during active labor. Oxytocin drives the powerful contractions that dilate the cervix and push the baby downward through the birth canal. At the same time, your body releases endorphins, natural pain-relieving hormones that can create an altered state of consciousness, helping you cope even when labor is long and intense. When endorphin levels are low, labor tends to feel more painful and harder to manage. When oxytocin levels drop, contractions can slow or stall.
Transition (8 to 10 cm)
Transition is the final stretch of the first stage, covering roughly the last 2 centimeters of dilation. It’s widely considered the most intense part of labor. Contractions may come every 2 to 3 minutes and last over a minute each, with very little rest between them. Many people experience shaking, nausea, intense pressure, and a feeling of being overwhelmed. This is a normal hormonal response, not a sign that something is wrong.
The good news is that transition is also the shortest phase, often lasting 15 minutes to an hour. It ends when the cervix is fully dilated and the urge to push begins.
Second Stage: Pushing and Birth
The second stage starts at full dilation and ends when your baby is born. You may feel intense pressure in your pelvis and a strong, involuntary urge to bear down. Depending on the situation, your care provider may coach you on when to push with each contraction, or they may let you follow your body’s own signals.
Pushing can last anywhere from a few minutes to a few hours. First-time mothers generally need longer than those who have given birth before. There’s a common belief that epidurals significantly extend the pushing phase, but a double-blinded trial of 400 women published in Obstetrics & Gynecology found no meaningful difference. Women receiving active epidural medication pushed for a median of 45 minutes, compared to 46 minutes for women receiving a saline placebo.
As the baby’s head begins to emerge, you may be asked to push more gently or stop pushing altogether. This slower approach gives vaginal tissues time to stretch gradually, reducing the risk of tearing. Once the head is delivered, the shoulders follow, and then the rest of the body comes quickly.
Third Stage: Delivering the Placenta
After your baby is born, the uterus continues to contract to detach the placenta from the uterine wall. You may feel mild cramps and a sense of pressure, and your care provider may ask you to push gently one more time. This stage typically takes 5 to 30 minutes.
Oxytocin plays a critical role here as well. The same hormone that powered your contractions now helps the uterus clamp down on the blood vessels where the placenta was attached, limiting bleeding. Skin-to-skin contact with your newborn and early breastfeeding both stimulate oxytocin release, which is one reason these are encouraged immediately after birth. Care teams often use additional methods to help the uterus contract firmly and reduce the risk of heavy bleeding, known as postpartum hemorrhage, the most significant complication of the third stage.
How Long Labor Takes Overall
Total labor duration varies widely. A first-time mother might spend 12 to 24 hours in labor from the first regular contractions to delivery of the placenta, with the vast majority of that time in the first stage. Someone who has given birth before often progresses considerably faster, sometimes completing labor in half the time or less.
Stress and environment can meaningfully influence the timeline. High adrenaline levels, which spike when you feel anxious or unsafe, can cause contractions to slow, stop, or become erratic. This is a built-in survival mechanism, but it works against you in labor. Feeling calm, supported, and safe helps keep oxytocin and endorphin levels high, which promotes steady, effective contractions and better pain tolerance. This is one reason that having continuous support during labor, whether from a partner, family member, or doula, is consistently linked to smoother births.