Noticing a blob of jelly-like discharge — or a hint of pink on the tissue — can send your heart racing at 38 weeks. Most of the time it is your body doing exactly what it should. Here is a calm, clear look at what the mucus plug and bloody show actually are, and when you need to act.
What is the mucus plug?
The mucus plug is exactly what it sounds like: a thick, gel-like barrier that forms in the cervical canal early in pregnancy. It acts as a protective seal, blocking bacteria from reaching the uterus and your growing baby throughout the pregnancy.
It is usually clear to off-white, sometimes tinged yellow or brown, and can look a bit like a thick lump of snot (the most honest description). It can be about the size of a tablespoon, though it often comes away in pieces over a few days rather than all at once, so you may not even notice it.
When does the mucus plug come out — and why?
As you approach the end of pregnancy, your cervix begins to soften and shorten (a process called effacement) and slowly opens (dilation). As the cervix changes, it can no longer hold the plug in place, so it dislodges and comes out in your discharge.
This most often happens in the last few weeks before your due date, but it can happen as early as a month before, or not until you are already in early labour. Once it passes, a new plug does not fully regrow, so your provider may check for signs of infection if there is a long gap between losing it and going into labour.
Knowing your due date helps put timing in context — if you have not already, our due date calculator gives you a clear estimate to work from.
What is bloody show — is it different from the mucus plug?
Yes, though the two often happen together. Bloody show is mucus that is streaked or tinged pink, red or brown because of small amounts of blood. The blood comes from tiny capillaries in the cervix that break as it stretches and ripens.
You might see:
- Pink or brownish mucus on the tissue or in your underwear
- A stringy or gelatinous discharge with red streaks
- A small clump of thick, blood-tinged mucus
This is a normal sign that your cervix is changing — but the amount of blood matters. A light, pinkish tinge or a few streaks of red through mucus is expected. If you see bright red blood that looks more like a period or soaks a pad, call your provider or go in straight away.
Does losing it mean labour is about to start?
This is the question everyone wants answered, and the honest truth is: sometimes, but not always.
For some people, losing the plug is followed by labour within hours. For others, days or even a couple of weeks pass before contractions begin. Losing the mucus plug on its own is not a signal to rush to hospital — it is a sign that your body is preparing, not necessarily that active labour is imminent.
What to do: note when you saw it, take a photo if you are unsure what you are looking at, and keep monitoring your body. Watch for signs that labour is approaching — regular contractions, your waters breaking, or mounting pressure and backache.
How do I know if I’m in actual labour?
Losing the plug is just one early signal. Active labour is usually marked by contractions that come regularly, get longer, stronger and closer together, and don’t stop when you rest or change position. That is when the clock really starts.
A helpful step-by-step guide on when to go to the hospital in labour can help you know exactly when to head in rather than sitting in triage for hours too soon.
When should I call my provider?
✓ Wait and monitor
- Lost mucus plug — no other symptoms
- Bloody show — pink or brown streaks, no contractions
- Contractions irregular and mild
- Baby moving normally
✕ Call your provider
- Heavy bright-red bleeding (not pink spotting)
- Water breaking (clear fluid gushing or trickling)
- Contractions 5 minutes apart for 1 hour
- Baby moving less than usual
Call or go in immediately if:
- You have bright red bleeding that is heavier than light spotting
- Your waters break (a gush or a persistent trickle of fluid)
- You notice your baby moving less than usual
- You are fewer than 37 weeks pregnant
- You have regular, painful contractions
You do not need to call the moment you see the plug — but you should never hesitate to ring if something worries you. Triage teams expect these calls and would much rather you check in.
Symptoms can’t confirm a pregnancy — only a missed period tells the two apart, and a test is what confirms it.
This article is for general information only and is not medical advice. Always follow your healthcare provider’s guidance.
