For most people, the signal to head to the hospital is contractions coming every five minutes, each lasting about one minute, for at least one hour. This pattern, sometimes called the 5-1-1 rule, is a reliable starting point. But several other situations call for an immediate trip regardless of your contraction pattern, and your personal history can shift that timeline significantly.
The 5-1-1 Rule for Contractions
The simplest guideline most providers use: contractions every five minutes, lasting one minute each, sustained for one hour. At that point, call your provider or the hospital’s labor floor. Regular contractions means they’re strong and consistently spaced about three to five minutes apart, not just occasionally intense.
Timing contractions is straightforward. Start the clock when one contraction begins and note when the next one starts. That gap is your frequency. Also note how long each contraction lasts from start to finish. You can use a phone app or just a clock with a second hand. The key is the pattern: the intervals should be getting shorter and more predictable over time, not bouncing around randomly.
Current guidelines from the American College of Obstetricians and Gynecologists note that active labor for many women doesn’t truly begin until the cervix reaches 5 to 6 centimeters of dilation, rather than the older benchmark of 4 centimeters. This means that if you arrive at the hospital in very early labor, you may be sent home or asked to walk the halls for a while. That’s not a mistake. Staying home during early labor, when you’re more comfortable and mobile, is associated with fewer unnecessary interventions.
True Labor vs. Braxton Hicks
Braxton Hicks contractions can feel convincingly real, especially in the final weeks. The differences come down to pattern, progression, and persistence.
- Pattern: True labor contractions come at regular intervals and have a rhythm you can track. Braxton Hicks are irregular and unpredictable.
- Progression: True contractions get closer together over time. Braxton Hicks stay scattered and don’t build toward anything.
- Persistence: True labor continues no matter what you do. Braxton Hicks often stop when you rest, drink water, or change position.
- Intensity: True contractions grow stronger. Braxton Hicks tend to stay mild or taper off.
A practical test: drink a large glass of water, lie on your side, and rest for 30 minutes. If the contractions ease up or disappear, they’re very likely not the real thing. True labor contractions will keep coming regardless.
When Your Water Breaks
If your water breaks, contact your provider right away, even if you’re not having contractions yet. Note the time it happened and pay attention to what the fluid looks like. Clear or pale yellow fluid is typical. Green, brown, or foul-smelling fluid can indicate that the baby has passed meconium (stool), which your care team needs to know about immediately.
Some people experience a dramatic gush. Others notice a slow, steady trickle that’s easy to confuse with urine. If you’re unsure, put on a clean pad and check it after 30 minutes. Amniotic fluid is usually odorless or slightly sweet-smelling and continues to leak, unlike a one-time bladder leak. Once membranes have ruptured, the risk of infection increases over time, so most providers will want you at the hospital relatively quickly even if labor hasn’t started on its own.
Red Flags That Mean Go Now
Certain symptoms warrant an immediate trip to the hospital, no matter where you are in your pregnancy or what your contractions are doing:
- Vaginal bleeding: Anything heavier than light spotting, similar to a period, needs urgent evaluation.
- Vision changes: Flashes of light, bright spots, blind spots, blurred or double vision, or temporary loss of vision can signal dangerously high blood pressure or preeclampsia.
- Decreased fetal movement: If your baby has stopped moving or is moving noticeably less than usual, that change is significant and should be assessed promptly.
- Severe headache that won’t go away: Especially paired with swelling or vision changes, this can also point to preeclampsia.
- Foul-smelling vaginal discharge: This may indicate infection, particularly if your membranes have ruptured.
These aren’t “wait and see” situations. Call 911 or get to the nearest emergency room.
If You’re GBS Positive
About 1 in 4 pregnant people carry Group B Strep, a bacterium that’s harmless to you but can be dangerous for a newborn during delivery. If you tested positive during pregnancy, you’ll need IV antibiotics during labor. The antibiotics work best when given at least four hours before delivery.
That timeline matters. If you’re GBS positive, head to the hospital when labor begins rather than laboring at home for an extended period. Arriving earlier gives your care team enough time to get the full course of antibiotics into your system before the baby arrives.
When You Should Leave Earlier Than 5-1-1
The 5-1-1 rule is a general guideline, and some people need to adjust it. Precipitous labor, where the entire process from first contraction to delivery takes less than three hours, is more common than many people realize. Your risk is higher if you’ve given birth before (especially if a previous labor was fast), if you have high blood pressure, or if you’re carrying a smaller baby.
If you had a rapid labor with a previous pregnancy, talk to your provider well before your due date about a modified plan. They may suggest heading to the hospital sooner, possibly as soon as contractions establish any regular pattern. In some cases, providers recommend a planned early induction to avoid the risks of delivering unexpectedly at home or in transit.
You should also plan to leave earlier if you live far from the hospital, if weather or traffic could delay you, or if you need to arrange childcare before leaving. These logistics sound obvious, but they’re easy to underestimate when contractions are intensifying.
What Happens When You Arrive
When you walk into the labor and delivery unit, you’ll go to triage first. A nurse will check your vital signs (blood pressure, heart rate, temperature) and place you on a fetal monitor to track the baby’s heart rate for about 20 minutes. If you appear to be in active labor, a vaginal exam will check your cervical dilation and the baby’s position.
If your water has broken but you’re not yet in active labor, the team will typically avoid vaginal exams to reduce infection risk, using other methods to confirm membrane rupture instead. The same caution applies if you’re bleeding heavily or in preterm labor.
Based on these assessments, you’ll either be admitted or, if you’re still in very early labor with reassuring vitals, sent home to continue laboring where you’re more comfortable. Being sent home can feel frustrating, but it’s a normal part of the process. Early labor can last many hours, and you’ll generally be more relaxed, better rested, and more mobile at home than in a hospital bed. The staff will give you clear instructions on when to come back.