Your body starts sending signals that labor is approaching days or even weeks before contractions begin. Some signs, like your baby dropping lower in your pelvis, happen gradually. Others, like bloody show or your water breaking, can mean labor is hours away. Knowing which signals fall into which category helps you feel prepared rather than panicked.
Your Baby Drops Lower
One of the earliest signs that your body is preparing for labor is called lightening, the moment your baby settles deeper into your pelvis. If this is your first pregnancy, this typically happens two to four weeks before delivery, though it can occur earlier. If you’ve had a baby before, your baby may not drop until labor itself begins.
You’ll likely notice lightening because it changes how your body feels in two distinct ways. Breathing gets easier and heartburn may improve because there’s less pressure on your diaphragm and stomach. At the same time, you’ll probably need to urinate more often as your baby’s head presses down on your bladder. Some women also notice a visible change in the shape of their belly, with the bump sitting noticeably lower.
Your Cervix Starts to Change
Before labor, your cervix goes through two major changes: effacement (thinning and softening) and dilation (opening). Effacement is measured in percentages, from 0% (thick and firm) to 100% (paper-thin). Dilation is measured in centimeters, from 0 to 10. You need to reach 100% effaced and 10 cm dilated before the pushing stage of delivery can begin.
Here’s what makes cervical changes a tricky predictor: every pregnancy is different. Some women walk around at 2 cm dilated and 30% effaced for weeks before labor starts. Others stay at 0% effaced and 0 cm dilated until a few days before delivery. In a first pregnancy, the cervix tends to efface before it dilates. In second or third pregnancies, both often happen at the same time. Your provider checks these numbers at late-pregnancy appointments, but no specific measurement can tell you exactly when labor will start.
Mucus Plug and Bloody Show
Throughout pregnancy, a thick plug of mucus seals the opening of your cervix, protecting your baby from bacteria. As your cervix begins to dilate, this plug dislodges. You might notice it as a glob of thick, jelly-like discharge, sometimes tinged yellow or clear.
When blood from your cervix mixes with the mucus plug, it’s called bloody show. This discharge looks pink, red, or brownish. Bloody show is a reliable sign that labor is coming, but the timing varies widely. For some women, labor begins within hours. For others, it’s still several days away. Losing your mucus plug without any blood is even less specific and can happen well before labor.
Digestive Changes in the Final Days
Loose stools or diarrhea in the days or hours before labor aren’t random. As labor approaches, your body releases hormones called prostaglandins that soften the cervix and stimulate the uterus to contract. These same hormones also act on the intestines, which is why many women experience an upset stomach, cramping, or frequent trips to the bathroom right before labor kicks in. Not everyone gets this symptom, but if you notice unexplained digestive changes in late pregnancy alongside other signs on this list, your body is likely gearing up.
How to Tell Real Contractions From False Ones
This is the question that sends most first-time parents to the phone or the hospital. Your uterus can start contracting weeks before true labor, and these “practice” contractions fall into two categories.
Braxton Hicks contractions are irregular tightenings that come and go without a pattern. They often start after physical activity or when you’re dehydrated. The key test: drink a glass of water, change your position, or go for a short walk. If the contractions ease up or stop, they’re Braxton Hicks.
Prodromal labor is trickier. These contractions can be mildly painful, come as frequently as every five minutes, and last up to 60 seconds each. That pattern sounds a lot like the real thing. The difference is that prodromal labor never advances beyond that point. The contractions don’t get closer together, longer, or more intense over time. They’re your body’s warm-up, not the main event, and they don’t cause your cervix to dilate.
True labor contractions follow a clear escalating pattern. They get longer, stronger, and closer together as time passes. They don’t stop when you move, drink water, or change positions. You’re likely in true labor if your contractions are coming less than five minutes apart, each one lasts longer than a minute, and this pattern has continued for over an hour straight. This is the well-known 5-1-1 rule, and it’s a good benchmark for when to head to the hospital or birthing center.
When Your Water Breaks
Despite how often movies portray it as the dramatic start of labor, your water breaking before contractions is actually uncommon. For up to 90% of women, labor contractions start first, and the membranes rupture later in the process.
If your water does break before labor begins, you might feel a sudden gush or a slow, steady trickle that you can’t control (which helps distinguish it from urine leakage). The fluid should be clear or pale yellow and mostly odorless. Once your membranes rupture, most providers want to deliver your baby within 24 to 48 hours, depending on your medical history and how far along you are, because the protective barrier around your baby is no longer intact.
One thing to watch for: if the fluid is green, brown, or has a foul smell, contact your provider right away. Discolored fluid can indicate that your baby has passed stool in the womb, which may need immediate attention.
Changes in Your Baby’s Movement
As your due date approaches, you might notice that your baby’s movements feel different. Less room in the uterus means fewer dramatic kicks and more rolling or squirming. This is normal. What isn’t normal is a noticeable decrease in how much your baby moves overall.
There’s no magic number of kicks that counts as “enough.” What matters is the pattern you’ve come to know. If your baby seems significantly less active than usual, that’s worth paying attention to. Lying on your side, having a cold drink, and focusing on movement for an hour can help you assess. If the change persists, contact your provider.
Putting the Timeline Together
These signs don’t arrive in a neat, predictable order, but they do follow a rough timeline. Weeks before labor, your baby may drop and you might notice increased pelvic pressure. Days before, you may lose your mucus plug, experience bloody show, or have digestive changes. Hours before or during early labor, contractions begin organizing into a recognizable pattern.
Some women experience nearly every sign on this list over a stretch of days. Others go from feeling perfectly normal to active labor in a matter of hours. Both are within the range of normal. The most useful thing you can do is learn the difference between signs that mean “soon” and signs that mean “now,” so the 5-1-1 rule for contractions and the guidelines around water breaking are worth committing to memory.