Going back to work or study doesn't have to mean stopping breastfeeding. A common pattern is to breastfeed before you leave and as soon as you're back, have your baby's carer give bottles of your expressed milk (or formula) in between, and express at work to keep your supply up. La Leche League's pumping guide says pumping about every 2 to 3 hours while you're apart maintains supply for most mothers.
If you express at work, you probably don't need a big freezer stash: the Australian Breastfeeding Association's milk stash guide says the milk from one day is often enough for the next. This guide covers planning, an example workday, expressing at work, your rights in Australia, the UK and the US, carer handovers, and getting milk home safely.
How do you plan feeding before going back to work?
A few weeks before your return, work through these steps:
- Decide what your baby will have while you're apart: your expressed milk, formula, or both. All are valid; see combination feeding.
- Talk to your employer early about when and where you can express. The NHS guide to breastfeeding and going back to work says to tell your employer in writing that you're breastfeeding before you go back.
- Practise with bottles if your baby hasn't had many. The CDC notes a breastfed baby may take a bottle more readily from someone other than the breastfeeding parent; see bottle refusal if it's a struggle.
- Build a small buffer of milk for the first day or two. Building a milk stash shows how to work out the amount.
- Do a trial run with your childcare before your first day, as the NHS suggests.
- Check your pump, spare parts, cooler bag and storage bags.
If childcare is close to work, the NHS notes you may be able to breastfeed during breaks or at drop-off and pick-up instead of expressing.
How often should you pump at work?
It depends on your baby's age and how long you're away. The Australian Breastfeeding Association describes how expressing usually changes:
| Baby's age | Typical pattern |
|---|---|
| 6 weeks to 6 months | Breastfeed before and after work and express a few times during the day |
| 6 to 12 months | You might start with two sessions and reduce to one as your baby grows |
| 12 months and beyond | You might express for comfort and leave whatever milk you have |
La Leche League's example for an 8-hour workday is breastfeeding before work, pumping mid-morning, at lunch and mid-afternoon, then breastfeeding when you get home.
Example day — adjust to your baby (around 5 months, 8-hour workday)
| Time | What happens |
|---|---|
| 6:30 am | Breastfeed at home |
| 8:00 am | Breastfeed at childcare drop-off if you can |
| 10:30 am | Express at work |
| 1:00 pm | Express at lunch |
| 3:30 pm | Express at work |
| 5:30 pm | Breastfeed at pick-up or as soon as you're home |
| Evening and night | Breastfeed as your baby needs |
Double pumping saves time: La Leche League says it takes about 15 minutes to pump both breasts. Some people find hand expressing for 1 to 2 minutes first helps. For more, see pumping basics.
What are your rights to breastfeed or express at work?
Laws differ by country and change over time, so this is general information, not legal advice. Check your contract, award or workplace policy, and the official sources below.
Australia. The Australian Breastfeeding Association's work and breastfeeding page says Australian law protects your right to breastfeed and work, that it's unlawful for an employer to treat you unfairly because you're breastfeeding, and that you're entitled to reasonable lactation breaks under federal law. It notes there's no specific Australian law requiring those breaks to be paid. Not being given a private, suitable place to express may be discrimination.
United Kingdom. The HSE says employers must provide a suitable rest area for breastfeeding mothers, and that toilets are not a suitable place to express. Acas's returning-to-work guide describes a hygienic, private space to express and a fridge for milk as good practice, and says employers must do a health and safety risk assessment for people who are breastfeeding. Tell your employer in writing so this happens.
United States. The Department of Labor's pump-at-work page says most nursing employees are entitled, under the PUMP Act, to reasonable break time to express each time they need to, for 1 year after the child's birth. The space must be shielded from view, free from intrusion and not a bathroom.
What should you tell your baby's carer?
A clear handover makes bottles go more smoothly:
- Labelled milk. The CDC's storage guide suggests labelling with your child's name and the date expressed, and asking the provider about their own labelling and storage rules. The NHS suggests labelling so the oldest milk is used first.
- Small portions. Small amounts mean less waste; the carer can thaw or warm another if your baby is still hungry.
- How to thaw and warm. No microwave, and use thawed milk within the right time; see storing breast milk.
- Paced feeding. Show them paced bottle feeding so your baby takes what they need.
- Timing of the last feed. La Leche League's guide to feeding breast milk other than at the breast suggests the carer avoids a big feed shortly before you return, so your baby is keen to breastfeed.
- Your baby's cues and routine, including how they show hunger and fullness, and how they like to settle.
How do you store and transport breast milk from work?
At work, keep milk in a fridge if there is one. The Australian Breastfeeding Association's storage table gives fresh milk 6 to 8 hours at 26°C or below, but says use a fridge if one is available. In a shared fridge, label milk with your name and the date.
For the trip home, use an insulated cooler bag with ice packs. The CDC and the NHS storage guide both say milk can stay in a cooler bag with ice packs for up to 24 hours. At home, use it, refrigerate it or freeze it straight away.
Fridge times differ by country: up to 72 hours in Australian guidance and up to 4 days from the CDC. The NHS gives up to 8 days at 4°C or lower on its storage page but up to 5 days on its back-to-work page; if your fridge is warmer than 4°C or you're not sure, it says use milk within 3 days. When guidance differs, the shorter time is the cautious choice. For freezer times and thawing, see storing breast milk.
Wash pump parts after each session where you can; see the cleaning steps in pumping basics.
How do you keep your supply up while working?
- Keep the feeds you're there for. Breastfeeding before work, at pick-up and in the evening keeps you connected and removes milk regularly. The NHS mentions evening feeds as a way to stay close to your baby.
- Keep night and weekend breastfeeds if they suit you; they help your supply match your baby's needs.
- Don't skip work sessions if you can help it, especially in the first weeks back.
- Watch the balance. If you're expressing less than your baby drinks while apart, add a session, try hands-on pumping, or talk about topping up with formula.
When should you get help?
Talk to a lactation consultant or a breastfeeding helpline (the Australian Breastfeeding Association on 1800 686 268 in Australia, the National Breastfeeding Helpline on 0300 100 0212 in the UK) if your supply drops and stays down, pumping is painful, or your baby won't take bottles from the carer. See your GP if a breast becomes hot, red and painful, especially with a fever or flu-like feeling (see mastitis). If you're struggling with the workload or your mood, talk to your GP or a perinatal support line (PANDA on 1300 726 306 in Australia, Samaritans on 116 123 in the UK, the National Maternal Mental Health Hotline on 1-833-852-6262 in the US).
If your carer notices your baby has far fewer wet nappies, won't feed or seems unwell, follow the urgent steps in bottle refusal.
What's worth tracking in the first weeks back?
Note how much you express each workday and how much your baby drinks at childcare. If the two numbers are close, you're on track; if your baby regularly drinks more than you express, that's the time to add a session or adjust the plan, before the freezer runs low.
