Signs of Labor: How to Know It's Time
Early Signs That Labor Is Approaching
In the days and weeks before active labor begins, your body starts preparing for delivery. These early signs do not mean you need to head to the hospital immediately, but they indicate that labor is on the horizon.
Lightening (Baby Drops)
Lightening occurs when your baby descends lower into your pelvis in preparation for birth. This can happen anywhere from a few weeks to a few hours before labor begins. You may notice that you can breathe more easily as pressure on your diaphragm decreases, but you will likely feel increased pressure on your bladder. For first-time mothers, lightening often happens two to four weeks before delivery. In subsequent pregnancies, it may not occur until labor begins.
Increased Braxton Hicks Contractions
Braxton Hicks contractions, sometimes called “practice contractions,” may become more frequent and noticeable as your due date approaches. These irregular tightening sensations help prepare your uterus for labor but do not dilate the cervix. They typically go away with movement or changes in position.
Cervical Changes
Your provider may note that your cervix is softening (effacement) and beginning to open (dilation) during late-pregnancy checkups. Some women walk around dilated 1 to 2 centimeters for weeks before labor begins, while others do not dilate until active labor starts. Cervical changes alone do not predict when labor will begin.
Nesting Instinct
Many women experience a burst of energy and an urge to organize, clean, and prepare the home in the days before labor. While not a medical sign, the nesting instinct is widely reported and may be driven by hormonal changes.
Signs That Labor Has Started
When true labor begins, you will notice more definitive signs:
The Bloody Show
As your cervix dilates, the mucus plug that sealed the cervical opening throughout pregnancy is released. This may appear as a thick, pinkish or blood-tinged discharge. Some women notice it all at once, while others lose it gradually over several days. The bloody show typically means labor will begin within hours to days.
Water Breaking
The rupture of the amniotic sac — known as your “water breaking” — can present as a dramatic gush or a slow, steady leak of clear or slightly yellowish fluid. About 10 to 15 percent of women experience water breaking before contractions begin. If you think your water has broken, note the time, the color and smell of the fluid, and contact your healthcare provider. Most providers want you to deliver within 24 hours of membrane rupture to reduce infection risk.
Regular Contractions That Intensify
The hallmark of true labor is contractions that come at regular intervals, gradually become closer together, last longer, and grow stronger over time. Unlike Braxton Hicks contractions, true labor contractions do not stop when you change position, walk around, or rest.
True Labor vs. False Labor
Distinguishing true labor from false labor is one of the most common challenges for expectant parents. Here is how to tell the difference:
| Feature | True Labor | False Labor (Braxton Hicks) |
|---|---|---|
| Timing | Regular intervals that get closer | Irregular, no consistent pattern |
| Intensity | Progressively stronger | Stay the same or weaken |
| Location | Start in back, radiate to front | Usually felt only in the front |
| Effect of movement | Continue regardless | Often stop with walking or rest |
| Cervical change | Cervix dilates progressively | No cervical change |
The 5-1-1 Rule
Many healthcare providers recommend the 5-1-1 rule as a guideline for when to head to the hospital or birth center:
- Contractions are 5 minutes apart
- Each contraction lasts 1 minute
- This pattern has continued for 1 hour
Some providers use a 4-1-1 or 3-1-1 rule, especially for second or subsequent births that may progress faster. Discuss the specific guidelines with your provider in advance so you know the plan for your pregnancy.
When to Go to the Hospital
Beyond the 5-1-1 rule, go to the hospital immediately if you experience:
- Your water breaks and the fluid is green or brown-tinged (which may indicate meconium)
- Heavy vaginal bleeding (more than spotting)
- Constant, severe abdominal pain without relief between contractions
- You feel the baby is moving significantly less than usual
- You have a sudden, severe headache with vision changes (possible preeclampsia)
When in doubt, call your provider. They would rather hear from you with a false alarm than have you wait too long with a genuine concern.
Use our due date calculator to know your expected delivery window so you can prepare for these signs in advance.
Related Tools
- Due Date Calculator — Know when to start watching for signs of labor
- Pregnancy Week Tracker — Follow your third trimester progress week by week