What to Expect with a Sweep
A Calm Guide to Membrane Sweeps, How They Feel, and What Happens Next
If your due date has come (and maybe gone), your midwife might offer you a sweep — short for membrane sweep. It’s one of the most common ways to encourage labour to start naturally, and while it’s a simple procedure, it can feel a bit unknown if you’ve never had one before.
At Neutral Nest, we’re here to gently guide you through what it is, what it feels like, and what to expect afterwards — so you can walk into your appointment feeling informed, calm, and in control.
First, What Is a Membrane Sweep?
A membrane sweep is a vaginal examination that’s done by your midwife or doctor. They’ll insert a gloved finger into your cervix (if it’s already slightly open) and make a circular, sweeping motion to gently separate the amniotic sac (the membranes around your baby) from the cervix.
This separation encourages the release of hormones called prostaglandins, which can help soften the cervix and stimulate contractions.
It’s sometimes offered as a way to avoid medical induction and support your body into starting labour naturally.
When Might It Be Offered?
In the UK, membrane sweeps are often offered:
Around 40 weeks for first-time parents
Around 41 weeks for subsequent pregnancies
Sooner if you’re being monitored for medical reasons or have had a previous quick labour
It’s always your choice — and you can say yes, no, or ask for more time to decide.
What Does It Feel Like?
Everyone’s experience is a little different, but common sensations include:
Pressure or discomfort internally
A strong urge to bear down
Cramping or a stretching feeling
Some people describe it as feeling similar to a smear test, but a little deeper
It shouldn’t be intensely painful, but it may feel uncomfortable or vulnerable — especially if you’re not feeling emotionally ready. Let your midwife know how you’re feeling. You’re allowed to pause or stop at any time.
What Happens Afterwards?
After a sweep, it’s common to experience:
Cramping or period-like pain
Spotting or light bleeding (pink or brown is normal)
An increase in vaginal discharge
A "show" — this is the mucus plug coming away from the cervix
Some mild contractions that start and stop
Some people go into labour within hours, others in a day or two — and for some, nothing happens at all. A sweep can only help if your body is already gearing up for labour.
What Are the Benefits?
It’s a natural method to help avoid medical induction
It can encourage your cervix to soften and open
It may help labour start sooner — but there are no guarantees
It’s most effective when your body is already close to readiness.
Are There Any Risks?
Sweeps are generally considered safe, but they can cause:
Discomfort
Light bleeding or spotting
Irregular contractions or false starts (which can be tiring)
Rarely, your waters may break — if so, let your midwife know straight away
If anything feels intense, concerning, or if you experience heavy bleeding, strong pain, or reduced baby movements, call your maternity unit immediately.
Tips to Help You Feel More Comfortable
Empty your bladder beforehand
Take deep, slow breaths during the sweep
Ask your midwife to explain each step as they go
Bring a support person if it helps you feel calmer
Plan some rest or quiet time afterwards
You might want to take a walk, have a warm bath, or simply tune in to how your body feels.
Final Thoughts
A sweep is one small tool that may support your body in moving toward labour — but it doesn’t define your birth journey. Some find it helpful, others find it uncomfortable or ineffective. Both experiences are valid.
What matters most is that you feel informed, respected, and supported in your decisions. If something doesn’t feel right for you, it’s okay to wait, ask more questions, or explore other options.
At Neutral Nest, we’re here for every stage — from the wondering, to the waiting, to the waves that bring your baby to you.