Breast Pump Guides
Working out how long to pump can feel surprisingly confusing — especially when different guides give you different numbers. Here is what actually matters for your body and your routine.
Most pumping sessions take around 15–20 minutes when double pumping, or until the milk flow slows to occasional drops and your breasts feel softer and more comfortable. Some mums need less or more time — so use your milk flow and comfort, not only the timer, as your guide. If you are also choosing a pump, our wearable breast pump guide covers what to look for.
Key Takeaways
As a starting point, allow approximately the times below. These are guides, not deadlines — your breasts and milk flow are the most reliable signal. According to the Australian Breastfeeding Association, most pumping sessions last around 15–20 minutes or until milk slows to a drip. Pregnancy, Birth and Baby recommends pumping until your breast feels softer or milk flow stops, which may take 10–15 minutes. These ranges are not contradictory — pumping time varies with milk flow, technique, pump type and whether one or both breasts are being expressed.
| Pumping situation | Suggested starting time | Notes |
|---|---|---|
| Double pumping | 15–20 minutes total | Most time-efficient; stimulates both sides at once |
| Pumping one breast at a time | 10–15 minutes per breast | Total time approximately 20–30 minutes |
| Pumping after breastfeeding | 5–10 minutes | Output will be smaller — this is normal |
| Replacing a breastfeed | 15–20 minutes | Pump around the time baby would normally feed where practical |
| Exclusively pumping | 15–20 minutes per session | At least 8 sessions in 24 hours recommended (ABA) |
| Power pumping | ~60-minute structured session | 20 min on, 10 off, 10 on, 10 off, 10 on — short-term supply strategy |
Sources: Australian Breastfeeding Association — Expressing: The Basics · Pregnancy, Birth and Baby. This information is general and does not replace individual advice from your midwife, lactation consultant or healthcare team.
Your body usually gives you more useful information than the timer. You have probably pumped long enough when:
Your breasts do not need to feel completely empty. Breasts continue producing milk constantly, so complete emptiness is not a realistic finishing point. The goal is effective, comfortable milk removal — not chasing every final drop.
A let-down, sometimes called the milk-ejection reflex, is the response that causes milk to begin flowing. You may notice:
Not feeling your let-down does not mean it did not happen. Many mums recognise it by watching the milk flow rather than feeling a particular sensation.
If you are using a single pump, start with approximately 10–15 minutes on each breast. You can switch sides when the milk flow becomes very slow, then return briefly to the first breast if it still feels full.
If you are double pumping, approximately 15–20 minutes in total is a useful starting point. Double pumping can save time because both breasts are being stimulated at once.
However, your breasts may not respond identically. It is normal for one side to produce more milk, begin flowing sooner, need an extra few minutes, respond better to massage, or require a different flange size. Try not to stop both sides simply because one has slowed. If your pump allows separate control, you can give the slower side a little more time without over-pumping the other.
The right pumping time depends partly on what you are trying to achieve. A mum expressing occasionally does not need the same routine as someone exclusively pumping for a newborn.
For your first session, begin with around 10–15 minutes at a low, comfortable suction. It may take a few attempts for your body to become familiar with the pump — let-down may be slower and output smaller than it will be once you are more practised. Stop and check the flange fit if you feel pain, rubbing or pinching. Do not judge your supply based on what you collect the first time.
If you are breastfeeding directly and only want some milk for an occasional bottle, begin with a 10–15-minute session once a day. Many mums find the morning convenient because their breasts may feel fuller, but the best time is the one you can manage consistently. You do not need to collect an entire bottle in one session — smaller amounts expressed over several sessions can gradually build a useful supply.
When pumping after a breastfeed, 5–10 minutes is often enough. Your baby has already removed some milk, so the purpose may be to collect a little extra or provide additional stimulation. Do not be discouraged if you only collect a small amount — pump output immediately after feeding does not show how much milk you produce across the entire day. If you are pumping after feeds because your baby is having difficulty attaching or has been given a feeding plan, follow the advice provided by your midwife, paediatrician or lactation consultant.
If you are away from your baby and pumping instead of their usual breastfeed, allow around 15–20 minutes when double pumping. Aim to pump around the time your baby would normally feed where practical. At work, a comfortable wearable breast pump can make it easier to fit a complete session into your day — a pump that is easier to use consistently may help you avoid repeatedly delaying or missing sessions.
During the early weeks, frequent stimulation is usually more important than very long pumping sessions. If you are exclusively expressing while establishing your supply, a common starting point is around 15–20 minutes per session when double pumping, at least eight sessions across 24 hours, and pumping approximately every two to three hours during the day. The Australian Breastfeeding Association recommends aiming for at least eight expressions in 24 hours when exclusively expressing. If your newborn is not feeding effectively, speak with your maternity team promptly rather than trying to solve the problem simply by pumping for longer.
Once your supply is established, many exclusively pumping mums continue with sessions of around 15–20 minutes. Some finish in 12 minutes, while others regularly need 25 minutes. Look at your full 24-hour pattern rather than judging one session. A sustainable routine is more valuable than forcing every session to reach a particular time. If you are considering relying primarily on an in-bra pump, our guide explains whether you can use a wearable breast pump exclusively.
For most mums, increasing the number of effective milk removals is more helpful than making sessions longer. Begin with your usual 15–20-minute session. After the milk slows, continue for another two to five minutes if you are comfortable — this extra stimulation may help signal additional demand or encourage another let-down. You might also add a short session between feeds. Read our guide on how much milk you should be pumping to understand what is normal at each stage.
A common power pumping routine lasts approximately one hour: pump for 20 minutes, rest for 10 minutes, pump for 10 minutes, rest for 10 minutes, then pump for another 10 minutes — giving 40 minutes of active pumping within a 60-minute period. It mimics the effect of cluster feeding to signal increased demand. Power pumping is generally used once daily for a limited period, rather than replacing every regular pumping session. An individual plan from a lactation consultant may differ. Stop if you experience pain or nipple damage. Our power pumping schedule guide covers how to do it effectively.
If you are expressing only to relieve uncomfortable fullness, pump or hand express just until the breast feels more comfortable — not to empty it completely. Regularly removing more milk than your baby needs can encourage your body to produce even more, which may worsen engorgement over time. Express only until the pressure eases and your breast feels more comfortable. If you are regularly engorged, speak with your midwife or a lactation consultant about adjusting your feeding or pumping frequency. If you are in the process of weaning off the pump, our guide to stopping pumping breast milk gradually covers how to manage engorgement as you reduce sessions.
Sometimes — briefly. Milk flow often comes in waves. You may see a steady stream, followed by very little milk, before another let-down begins. When the flow first stops, try:
If another let-down begins, continue until the milk slows again. If nothing changes and your breasts feel comfortable, you can finish. You do not need to sit through a long, unproductive session every time. If milk regularly stops after only a few minutes while your breasts still feel full, investigate the cause rather than automatically extending the timer.
Pump type is one part of the picture, but your response to the pump, flange fit and pumping technique can make just as much difference. Here is what to expect from each type.
A single pump expresses one breast at a time, so the total process usually takes longer — typically 10–15 minutes per breast. A double pump stimulates both breasts together and may complete the session in approximately 15–20 minutes. Double pumping is often more practical for regular or exclusive pumping, particularly when time is limited.
Manual pumps work well for occasional use, relieving fullness or collecting a small amount. There is no fixed duration because the pumping rhythm is controlled by your hand. Stop when the breast feels softer, milk flow has slowed, and you have collected what you reasonably need. If your hand becomes tired or the process is taking a long time every day, an electric pump may be more practical.
Many mums complete a wearable pumping session within the usual 15–20-minute range, but compare the result with your own normal output, comfort and breast softness rather than a fixed benchmark. In-bra pumps make alignment particularly important because you cannot always see where your nipple sits. If a wearable consistently takes longer or removes less milk for you, check that your nipple is centred in the flange tunnel, your bra holds the cup securely without compressing it, the seal is complete, and valves and membranes are clean and undamaged. Our guide to the best wearable breast pumps in Australia covers what to look for, including the BabyNera FlowEase™, which offers four modes and 15 intensity levels so you can find the right setting for your body.
For most mums, pumping beyond 30 minutes is not routinely necessary. The Australian Breastfeeding Association advises that more than 30 minutes is too long for most pumping sessions. An occasional longer session is not automatically harmful, but if you regularly need more than 30 minutes, review your flange size, nipple alignment, pump assembly, valve and membrane condition, battery level, and whether a full let-down is occurring — and seek individual support if you still feel uncomfortably full afterwards. Do not use painful suction to speed things up — pumping should feel like firm, rhythmic pulling, not pinching, biting or rubbing.
If your sessions consistently run past 30 minutes, several common factors may be contributing — and many are straightforward to check.
A flange that is too small can cause rubbing or restrict nipple movement. A flange that is too large may draw excessive areola tissue into the tunnel. Either problem can make pumping uncomfortable and less efficient. Measure both nipples separately, as they may require different sizes. Our flange size guide walks you through how to measure correctly.
Feeling stressed, rushed, cold or uncomfortable can sometimes delay or make let-down more difficult. Try creating a short routine before pumping: warmth, slow breathing, gentle massage, looking at a photo of your baby, and a comfortable seat can all help.
More suction does not mean more milk. If the setting causes pain or swelling, your body may have more difficulty relaxing into a let-down. Reduce the intensity until the pulling sensation is strong but comfortable — this is usually more effective than running maximum suction for the full session.
A torn duckbill valve, stretched membrane or cracked seal can weaken suction even when the motor sounds completely normal. Inspect soft silicone parts regularly and follow your pump manufacturer's replacement schedule. A worn valve is one of the most common — and most easily fixed — reasons sessions drag on longer than expected.
Many mums collect more milk in the morning and less in the evening. Output may also change after a recent feed, during illness, around your menstrual cycle or after a poor night's sleep. One slower session is rarely a reason to panic — look at your 24-hour total rather than reacting to an individual result.
Stop the session and check your setup if pumping causes any of the following. Seek support if symptoms persist or you are concerned about your baby.
Sharp pain, pinching, nipple rubbing, nipple blanching (white or pale nipple after removal), increasing swelling inside the flange, or flow stopping with your breast still feeling very full. These signal a fit or settings problem — not a reason to push through.
Pumping remains painful after adjusting fit and settings · You have persistent nipple cracks, bleeding or skin damage · A firm or tender area of the breast is not improving · Your breast becomes increasingly red, hot or swollen · You feel feverish or develop flu-like symptoms · Your output drops suddenly and does not recover · You are concerned about your baby's wet nappies, feeding or weight gain. The Australian Breastfeeding Association Helpline is free: 1800 686 268.
If you are considering a wearable to make your pumping sessions more manageable, the right fit and suction settings matter just as much as which pump you choose. Our guide walks you through what to look for — including how the BabyNera FlowEase™ works, with four modes, 15 adjustable levels and five flange sizes from 16 to 27 mm.
Common questions about pumping duration, knowing when to stop, and adjusting your routine.
Yes, 10 minutes may be enough if your milk has flowed well, your breast feels softer, and you are pumping after a breastfeed or expressing occasionally. If your breast still feels full or milk is flowing steadily, continue for a few more minutes. The flow pattern matters more than the timer.
No — 20 minutes is within the usual range for a double pumping session. Stop earlier if you are comfortably finished, or adjust your equipment if pumping for 20 minutes causes pain, rubbing or swelling.
Pump until the flow has slowed to occasional drops and your breast feels softer. Continuing for another two to five minutes may encourage a second let-down, but you do not need to chase complete emptiness. Breasts are never truly empty — they continue producing milk constantly.
Around 5–10 minutes is a practical starting point after breastfeeding. You may collect only a small amount because your baby has already fed, but the additional stimulation can still be useful when building supply. Do not judge your overall supply based on what you collect immediately after a feed.
If you are replacing a feed, try to pump around the time your baby would normally breastfeed. If exclusively expressing during the early weeks, the Australian Breastfeeding Association recommends at least eight expressions across 24 hours — roughly every 2–3 hours during the day, with one or two overnight sessions while supply is being established.
Not automatically. Once milk has slowed and your breasts feel more comfortable, extending the session substantially may add little milk while increasing the chance of nipple discomfort. Pumping more frequently is generally more effective than making individual sessions much longer, according to the ABA.
Not necessarily — many mums complete a wearable session within the usual 15–20-minute range, but compare with your own comfort, breast softness and normal output. If sessions consistently take longer or yield substantially less milk, check flange size, nipple alignment, bra pressure, cup seal and valve condition before assuming the issue is your supply.
Begin with around 10–15 minutes at a low, comfortable suction. It may take several attempts before your body responds quickly to the pump — let-down may be slower and output smaller than it will become with practice. Stop immediately if you feel pain or rubbing and check your flange fit.
If milk is still flowing steadily and pumping remains comfortable, you can continue beyond the usual time. Stop if you develop pain, rubbing or swelling. If sessions regularly run past 30 minutes with milk still flowing well, it is worth reviewing your pump setup with a lactation consultant.
Storage time depends on the room temperature and conditions. Refer to the Pregnancy, Birth and Baby breast milk storage guide for current Australian recommendations. How long you pump and how long the milk lasts are separate questions.
This article was written by the BabyNera Editorial Team using current guidance from the Australian Breastfeeding Association and Pregnancy, Birth and Baby. This information is general and does not replace individual advice from your midwife, maternal and child health nurse, GP or lactation consultant.
