True labor produces contractions that get stronger, closer together, and longer over time, and they don’t stop when you move around or change positions. That pattern is the single most reliable sign that labor has started. But contractions aren’t the only signal your body sends. Several other physical changes can help you tell the difference between “this is it” and a false alarm.
True Contractions vs. Braxton Hicks
Braxton Hicks contractions are practice contractions that can start weeks before your due date. They feel like a tightening in your abdomen, tend to stay focused in one area, and are uncomfortable but not usually painful. The intervals between them are irregular, they don’t get stronger over time, and they often taper off if you stand up, go for a walk, or simply change positions.
True labor contractions are different in almost every way. They start at the top of the uterus and move in a coordinated wave through the middle and down to the lower segment. They hurt. They get progressively stronger, last longer, and come closer together as time passes. Most importantly, they don’t stop no matter what you do. Walking, resting, changing positions, drinking water: none of it makes true labor contractions go away.
If you’re unsure which kind you’re having, try timing them. If the gap between contractions keeps shrinking and each one feels more intense than the last, that’s a strong signal you’re in real labor.
How to Time Your Contractions
The standard guideline is the 5-1-1 rule: head to the hospital when contractions come every 5 minutes apart, each one lasts about 1 minute, and that pattern has held consistently for at least 1 hour. You can use a stopwatch, your phone’s clock, or a contraction-timing app. Start timing from the beginning of one contraction to the beginning of the next.
Early labor contractions may be 15 to 20 minutes apart and relatively mild. You might be able to talk or walk through them. As they shift to the 5-1-1 pattern and become harder to talk through, that’s your cue to go. If this isn’t your first baby, your provider may tell you to come in sooner, since labor often progresses faster with subsequent pregnancies.
What It Means When Your Water Breaks
Amniotic fluid is mostly clear, sometimes with a pale straw-yellow tint, and it has no smell. That’s the key difference from a urine leak, which is extremely common in late pregnancy. Urine has a distinct odor and you can usually stop the flow by tightening your pelvic floor muscles. Amniotic fluid keeps coming regardless.
Your water breaking can feel like a sudden gush or a slow, steady trickle that soaks through your underwear. At its peak volume, there’s close to a liter (about 4 cups) of amniotic fluid in the uterus, so a full rupture is hard to miss. A slow leak is trickier. If you’re unsure, put on a clean pad and check it after 30 minutes. Amniotic fluid will be colorless or very lightly yellow with no odor. If the fluid is green, brown, or has a foul smell, contact your provider right away.
Not everyone’s water breaks before contractions start. For many people, contractions come first and the membranes rupture later, sometimes not until well into active labor.
Early Physical Signs That Labor Is Close
Before contractions become regular, your body often drops a few hints that labor is approaching.
The mucus plug is a thick, jelly-like clump of mucus that seals the cervix during pregnancy. When your cervix starts to thin and open, you may pass all or part of it. It can be clear, yellowish, brown, or pink, sometimes streaked with blood. This blood-tinged discharge is called “bloody show.” Losing your mucus plug means labor could start within hours, but it could also still be days away, so it’s a heads-up rather than a starting gun.
Digestive changes are another common signal. As labor nears, your body ramps up production of hormones called prostaglandins that soften the cervix and stimulate uterine contractions. Those same hormones affect the intestines, which can cause loose stools or diarrhea in the 24 to 48 hours before labor begins. It’s not pleasant, but it’s normal and surprisingly common.
Some people also experience a burst of energy and an intense urge to clean, organize, or prepare the house. This “nesting instinct” can kick in shortly before labor starts. If you suddenly feel compelled to scrub the kitchen floor at 2 a.m., your body may be telling you something.
Back Labor Feels Different
About a quarter of people in labor feel the most intense pain in their lower back rather than their abdomen. This is called back labor, and it’s usually caused by the baby’s position. When the back of the baby’s head presses against your lower spine and tailbone (a position where the baby faces your belly instead of your back), the pressure creates severe, often constant pain.
People describe back labor as intensely painful, sometimes more so than regular contractions. The key difference is that typical contractions come and go with breaks in between, while back labor pain may never fully let up. It can also radiate into your hips and cause painful muscle spasms. Other factors like a short torso, pelvic shape, spinal conditions like scoliosis, or tight muscles and ligaments can contribute to back labor.
If you’re having relentless lower back pain that worsens in a wave-like pattern, don’t dismiss it as just pregnancy aches. Normal pregnancy back pain is a dull, muscular soreness from carrying extra weight. Back labor is dramatically more intense and gets worse over time.
Signs That Need Immediate Attention
Some symptoms during late pregnancy or labor call for emergency care, not a wait-and-see approach.
- Heavy vaginal bleeding: Anything more than light spotting, especially if it’s like a period or heavier, or if you’re soaking through a pad in an hour.
- Baby stops moving or moves much less than usual: A noticeable drop in your baby’s movement pattern is always worth a call.
- Foul-smelling vaginal discharge or fluid: This could indicate an infection.
- Vision changes: Flashes of light, bright spots, blind spots, blurriness, or temporary vision loss can signal dangerously high blood pressure.
- Severe headache that won’t go away: Especially combined with vision changes or extreme swelling of your hands or face.
- Fever of 100.4°F (38°C) or higher.
- Trouble breathing, chest pain, or a racing heart.
- Severe belly pain that doesn’t let up: Constant, intense pain is different from contractions, which rise and fall.
- Swelling, redness, or pain in one leg: This can be a sign of a blood clot.
If you experience any of these and can’t reach your provider, go to an emergency room or call 911. Make sure whoever is treating you knows you’re pregnant or were recently pregnant.
Putting It All Together
Labor rarely announces itself with a single dramatic moment. For most people, it’s a combination of signals that build over hours or even days. You might notice your mucus plug, then loose stools, then irregular contractions that gradually become regular. Or your water might break first and contractions follow shortly after.
The clearest confirmation is the contraction pattern: getting stronger, getting closer, and not stopping. Once you hit the 5-1-1 threshold (every 5 minutes, lasting 1 minute each, for at least 1 hour), it’s time to go. If anything feels wrong before that point, trust your instincts and call your provider. You know your body better than any checklist.