Signs labour is near: the 24 to 48 hour window
By Pregora Editorial Team · Updated 2026-08-24 · 9 min read
Most of the widely repeated "signs labour is near" are poor predictors of timing. They can appear three weeks before birth or three hours before, and the same sign means different things in a first pregnancy than in a later one.
Only a small number of signs genuinely narrow it to a day or two. Here is the honest split.
Call your maternity unit straight away, at any stage, if your baby is moving less than usual or the pattern has changed. Reduced movement is never something to wait out overnight, and it is not a sign of labour. Also call immediately for heavy bleeding, waters that are green or brown, a severe headache with visual changes or pain under your ribs, a fever, or contractions before 37 weeks.
The three that actually mean hours, not weeks
1. Contractions that build
This is the only truly reliable sign, and the operative word is build. Real labour contractions get progressively longer, stronger and closer together. Practice contractions do not.
A single contraction tells you nothing. A pattern over an hour or two tells you almost everything.
2. Waters breaking
Contrary to how films present it, only a minority of labours begin this way, and it is often a slow trickle rather than a gush. Most people go into labour within about 24 hours of membranes rupturing, and where they do not, induction is usually discussed because the risk of infection rises once the barrier is gone.
Ring your unit whenever you think your waters have gone, even if nothing else is happening. Note the colour. Clear or pale straw is expected. Green or brown means meconium is present and needs assessing the same hour.
3. A bloody show
Mucus streaked with pink or brown blood, as the cervix begins to change. This one usually does point to labour within a few days rather than weeks, though it is not as precise as contractions.
Not sure how many weeks you are, or how far past your date? The due date calculator gives your estimated date and how many days remain, which is the number every induction conversation is measured against.
The ones that get quoted but mean very little
These are all real and all normal. They simply do not tell you when.
- The baby dropping, or lightening. In a first pregnancy the head often engages two to four weeks before birth. In later pregnancies it may not happen until labour itself. So it can mean a month, or it can mean tonight.
- Losing the mucus plug. It can come away weeks before labour, and it can regenerate. On its own it is not a countdown. Blood mixed into it is the part that matters.
- Nesting. A burst of energy and an urge to organise. Widely reported, but with no reliable relationship to timing.
- Loose stools. Prostaglandins that soften the cervix also affect the bowel, so this often does come shortly before labour. It is also caused by a great many ordinary things.
- More Braxton Hicks. Practice contractions usually become more noticeable in the final weeks. That is the uterus rehearsing, not starting.
- Backache and pelvic pressure. Almost universal in late pregnancy, and not a timing signal by itself.
Braxton Hicks or the real thing
| Braxton Hicks | Labour | |
|---|---|---|
| Rhythm | Irregular | Regular, and tightening |
| Over time | Stay the same or fade | Longer, stronger, closer |
| If you move or drink water | Often ease off | Carry on regardless |
| Where you feel it | Front of the abdomen | Often starts in the back and wraps round |
The middle row is the one to trust. If an hour of timing shows the gaps shrinking and the contractions lasting longer, that is labour, whatever else you are or are not feeling.
When to actually go in
The common rule of thumb is 5–1–1: contractions about five minutes apart, each lasting around a minute, sustained for an hour. Some units use 4–1–1 or 3–1–1, and advice differs for a second or third baby, where labour often moves faster.
Ask your own unit what they want from you and use that number rather than a number from the internet. Ring earlier than the rule if you live far away, if this is not your first and things are moving quickly, or simply if you are worried. No maternity unit minds the call.
Frequently asked questions
What are the signs labour is 24 to 48 hours away?
Contractions that are becoming regular and building, waters breaking, or a bloody show. Of the three, only building contractions are dependable. Everything else on the usual list can precede birth by weeks.
Does losing the mucus plug mean labour is starting?
Not by itself. It can come away weeks beforehand and it can reform. What shortens the timeline is blood mixed into it, a bloody show, which usually indicates labour within days.
Can labour start with no warning signs at all?
Yes, and it is common. Plenty of people notice nothing unusual until contractions begin. The absence of signs says nothing about how close you are.
I am past my due date. How long will they let me go?
Only about one in twenty babies arrives on the estimated date, and going a little past is normal. Most services begin discussing induction somewhere between 41 and 42 weeks, with monitoring in the meantime. The exact policy varies, so ask yours.
Disclaimer: General education, not medical advice, and no article can tell you whether you are in labour. Thresholds for coming in vary between units and between pregnancies. When in doubt, ring your midwife or maternity unit. That is what the number is for.