Labor contractions typically last between 30 and 90 seconds each, depending on which stage of labor you’re in. Early contractions tend to be shorter and farther apart, while contractions near the end of labor can last up to 90 seconds and come every two to three minutes. The entire process of labor contractions, from the first noticeable tightening to delivery, averages somewhere between 12 and 18 hours for a first birth and is often shorter for subsequent ones.
Early Labor Contractions
The first contractions you feel are usually mild, lasting about 30 to 45 seconds each. They may come every 15 to 20 minutes at first, then gradually move closer together over the course of hours. Many people describe them as similar to menstrual cramps or a tightening across the lower abdomen.
This early phase is the longest and least predictable part of labor. It can stretch over many hours or even a full day, particularly for first-time births. The contractions don’t follow a strict clock at this point. You might have a few close together, then a longer gap. What you’re watching for is a trend: contractions that are getting longer, stronger, and more regular over time. The general guideline is to call your provider or head to the hospital once contractions are coming every five minutes, each lasting about one minute, and that pattern has held for at least one hour.
Active Labor Contractions
Once labor shifts into the active phase, contractions get noticeably more intense. They typically last 45 to 60 seconds and arrive every three to five minutes. This is the phase where your cervix dilates from about 6 centimeters to the full 10 centimeters needed for delivery. Active labor lasts an average of four to eight hours, though it varies widely.
The final stretch of active labor, sometimes called transition, is the most intense part. Contractions during transition can last 60 to 90 seconds and may come every two to three minutes, leaving very little rest in between. This phase is shorter, often lasting 30 minutes to two hours, but it’s physically and emotionally the hardest. Many people feel nauseous, shaky, or overwhelmed during this window. The silver lining is that it signals delivery is close.
Contractions During Pushing
During the pushing stage, contractions continue at roughly the same intensity as transition, lasting 60 to 90 seconds each. The spacing may open up slightly, giving you a bit more recovery time between pushes. The sensation changes for many people because the urge to bear down gives the contractions a different quality. Instead of purely enduring them, you’re actively working with them.
The pushing stage lasts anywhere from a few minutes to a few hours. First-time births tend toward the longer end, while people who have delivered before often push for a shorter time.
Braxton Hicks vs. True Labor
Not every contraction means labor has started. Braxton Hicks contractions can begin as early as the second trimester and become more common in the final weeks of pregnancy. They’re irregular, usually painless or only mildly uncomfortable, and they stop when you change position, rest, or drink water. They don’t get progressively closer together or stronger over time.
True labor contractions follow a pattern of escalation. Each one tends to be at least as strong as the last, and the intervals between them shorten steadily. If you’re timing contractions and they’re inconsistent, easing off, or stopping entirely when you move around, you’re likely experiencing Braxton Hicks.
Prodromal Labor: The Gray Area
Prodromal labor sits between Braxton Hicks and true labor, and it can be genuinely confusing. These contractions can come every five minutes, last up to 60 seconds each, and feel painful. The key difference is that they never progress beyond that point. They don’t get closer together than five minutes or longer than one minute, and they eventually stop, often after several hours.
Prodromal labor can happen for days before real labor kicks in. It’s frustrating, but it isn’t dangerous. If your contractions are coming less than five minutes apart, lasting longer than one minute, and that pattern continues for over an hour, you’ve likely crossed into true labor.
How Induced Labor Differs
When labor is induced with medication, contractions can ramp up more quickly than they would on their own. The early, gradual buildup that happens in spontaneous labor may be compressed or skipped entirely. Contractions brought on by induction tend to become strong and regular faster, which is why induced labors are monitored closely. The duration of each individual contraction follows roughly the same ranges (30 to 90 seconds), but the overall timeline from first contraction to delivery can look different. Some induced labors progress faster than spontaneous ones, while others, especially in first-time mothers, can still take a long time.
Postpartum Contractions
Contractions don’t stop the moment your baby is born. Your uterus continues to contract as it shrinks back toward its pre-pregnancy size, a process called involution. During the first 12 hours after delivery, these contractions are regular and strong. You’ll feel them as cramping, often called afterpains, that can last about five minutes at a time before gradually easing.
Afterpains are most noticeable during the first few days postpartum. They tend to be more intense when you breastfeed or pump, because nursing triggers the release of oxytocin, a hormone that causes the uterus to contract. If this is your second or third baby, expect these cramps to be more painful than they were after your first birth. The uterine muscle has been stretched more and contracts more forcefully to return to its original size.
Timing Contractions at Home
To time a contraction, note when it starts and when it ends. That gives you the duration. Then note when the next one starts. The time from the beginning of one contraction to the beginning of the next is the interval, or frequency. Most contraction timer apps do this automatically, but a clock with a second hand works fine.
What matters most isn’t any single contraction but the pattern over 30 to 60 minutes. A few long contractions followed by a long pause is less significant than a steady rhythm of contractions that are clearly getting closer together. Tracking for at least an hour gives you a reliable picture of whether labor is truly progressing.