Preterm Labour: Signs Before 37 Weeks and When to Call
Labour before 37 completed weeks is preterm. Learn which contractions, fluid leaks, bleeding or pressure need an immediate call to maternity care, what assessment may involve and how to prepare without delaying help.
In this guide
Signs of preterm labour: act before 37 weeks
Preterm labour means labour that begins before 37 completed weeks of pregnancy. If you are under 37 weeks and have regular tightening or contractions, period-like cramps, new lower-back pain, pelvic pressure, vaginal bleeding or a gush or trickle of fluid, contact your maternity unit or obstetric clinician now. Do not wait for contractions to become a particular number of minutes apart.
Call for regular tightening, cramps or new back pain
Contractions may feel like repeated tightening, cramps similar to period pain, or pain that comes and goes. Preterm labour can be difficult to distinguish from ordinary pregnancy discomfort at home. Tell the maternity team how many weeks pregnant you are, when symptoms began and whether they are becoming more frequent or stronger; let the team decide how urgently you need to be seen.
A fluid leak or bleeding needs prompt assessment
A sudden gush is not the only way waters can break: fluid may leak slowly or keep dampening underwear. Put on a clean pad if available, note the colour and time, and call. Do not insert anything into the vagina or rely on a home check to rule out a leak. Any bleeding before 37 weeks deserves prompt advice; heavy bleeding, severe pain, fainting or feeling very unwell is an emergency.
Get urgent help if the baby moves less than usual
If your baby's usual movements slow, stop or feel different, contact maternity care immediately, including at night. Reduced movement needs its own assessment and should not be explained away as a normal part of early labour. If you cannot reach your care team or there is immediate danger, use India's emergency number 112 or go to the nearest hospital with maternity services.
| Pregnancy week | Symptom and start time | Fluid or bleeding | Baby's usual movement | Care team / hospital | Safe transport plan |
|---|---|---|---|---|---|
What assessment may involve
A call does not mean that you are definitely in labour. A clinician may ask about your pregnancy and symptoms, check your temperature, pulse and blood pressure, assess the baby's heartbeat, and examine you or test a sample if appropriate. The exact assessment and available tests differ between facilities.
Bring records if they are easy to reach
Take your antenatal card, scan reports, medicine list and any known allergy information if you can do so without delaying departure. Tell the team about previous preterm birth, cervical procedures, multiple pregnancy, high blood pressure, diabetes, infection symptoms or other complications. Not having records must not stop you seeking urgent assessment.
Ask what the team is checking and what happens next
You can ask whether your cervix, membranes, infection risk and the baby's wellbeing need assessment, which results are available today, and when to return if symptoms continue. An examination should be explained first. You can ask for a support person or chaperone where available and ask the clinician to pause while they explain.
A normal check is a snapshot, not a reason to ignore worsening symptoms
Sometimes assessment does not confirm labour at that visit. Ask for written return instructions and a number that works overnight. Call again if contractions, pain, fluid, bleeding or reduced movement returns or worsens; you are not wasting anyone's time by reporting a change.
Care planning and getting to the right facility
If early birth seems possible, the team may discuss monitoring, medicines or transfer to a hospital with newborn intensive-care services. Which options are suitable depends on gestational age, your health, the baby's condition and the facility's protocol. These decisions belong with an obstetric team; do not take labour-stopping or steroid medicines on your own.
Ask whether newborn support is available where you will give birth
A hospital with a neonatal unit may be recommended when a very early birth is possible. If transfer is advised, ask where you are going, how transport will be arranged, who can accompany you and how your records will travel. If moving you is not safe or possible, ask the team to explain the local plan for both you and the baby.
Discuss medicines as a time-sensitive, individual decision
Depending on pregnancy week and circumstances, clinicians may discuss medicines intended to support a baby's lungs, delay birth briefly or reduce certain neurological risks. These treatments are not suitable in every situation and are governed by local protocols. Ask what benefit is expected for you, what risks matter, and whether the choice is urgent.
Make a practical contact and transport plan
Keep the maternity number, antenatal record and a route to the hospital easy to reach. Identify a driver or ambulance option, childcare support and a safe person to contact. If symptoms start, do not spend time packing a full hospital bag or arranging a routine appointment before calling.
Preterm labour: frequently asked questions
What counts as preterm labour?
Labour that starts before 37 completed weeks is preterm. A clinician needs to assess symptoms to determine whether the cervix or membranes are changing; a home contraction pattern cannot confirm or exclude it.
Should I wait until contractions are five minutes apart?
No. That kind of timing advice is not a safe rule for suspected preterm labour. Call maternity care promptly for repeated tightening, cramps, fluid leakage, bleeding or other concerning changes before 37 weeks.
Does a small or clear fluid leak matter?
Yes. Waters can leak as a trickle and the fluid is not always easy to identify. Use a clean pad if possible and call for assessment; do not insert a tampon or wait to see whether the leak becomes larger.
Is every early contraction preterm labour?
No. Pregnancy can cause tightening for several reasons, and an assessment may find that labour is not progressing. Because symptoms overlap, contact maternity care rather than trying to diagnose the cause yourself.
Words you can use
Call about symptoms before 37 weeks
You have tightening, cramps, fluid leakage, bleeding or reduced movement
“I am about [weeks] pregnant. Since [time], I have had [symptom], and it is [pattern / getting stronger]. I have [fluid leak / bleeding / a change in movement / none of these]. Where should I go now, and should I come by ambulance?”
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Sources and publication record
Clinical sources checked 28 September 2026; medical and human Hindi editorial review pending · Sources checked .
- Premature Labour and BirthNational Health Service, United Kingdom
- Preterm Labour and Birth (NG25)National Institute for Health and Care Excellence, United Kingdom
- Emergency Response Support System 112Ministry of Home Affairs