Pumping plan

The short version

Your body makes milk to match demand, and a pump is how you place the order when your baby can’t. So the plan mostly comes down to one rule: pump about as often as your baby would feed [1]. The plan above turns your goal and your hours away into a schedule. Here’s the thinking behind it.

If you’re exclusively pumping

In the early weeks, pump at least 8 times in 24 hours, about every 2 to 3 hours in the day [2][3][4]. Children’s Minnesota puts it at about 8 to 10 [5]. The number of sessions matters more than perfect spacing [5]. Most sessions take 15 to 20 minutes [4][6].

Nights are the hard part, and they count. Milk-making hormones run high at night and drop after about 5 hours without milk removal, so plan at least one session overnight while your supply builds [2][3].

Once your baby is at least a month old and you’re making a full supply, about 25 to 30 ounces a day, you can slowly cut back to at least 6 sessions, every 3 to 4 hours. You can usually have one 6- to 7-hour stretch, often at night, if your output holds [7]. Drop one session at a time, every 5 to 7 days, and keep an eye on your daily total. If it falls, add the session back [7]. Our plan waits until 12 weeks to suggest cutting back. That’s our choice, not a rule. It’s later than the hospitals suggest, to err toward protecting your supply. Even after 12 weeks, the plan’s 6 sessions assume you’re making about 25 to 30 ounces a day. If you’re making less, keep pumping 8 times a day and talk to an IBCLC.

Back at work, nursing at home

Pump about as often as your baby feeds while you’re apart [1]. For many people that’s every 3 to 4 hours, or 2 to 3 times in an 8-hour workday, for about 15 to 20 minutes each [8][9]. Skipped or short sessions are the most common reason supply dips at work [10]. Your right to break time and a private space is covered in our pumping at work guide.

Building a stash or an occasional bottle

Keep nursing as usual and add 1 or 2 short sessions a day, 10 to 15 minutes each, after a feed. You can start at about 3 to 4 weeks [11]. Resist the urge to overachieve. Pumping too often or too long can make more milk than your baby needs [11], and oversupply is a major risk factor for mastitis [12].

You don’t need a freezer full. Aim for at least 2 days’ worth of feeds before you go back. After that, each workday’s pumping covers the next day [13]. Start about 2 weeks ahead, once a day; early sessions may yield less than half an ounce, which is normal [9]. Freeze in 2- to 4-ounce portions, and check how long it keeps with our breast milk storage tool.

How much milk to leave

Less than you’d guess. Breastfed babies typically take about 3 to 4 ounces a feed from 1 month on, and about 24 to 32 ounces a day if fed only by bottle [11]. AAP gives smaller amounts in the early weeks [14]. The plan estimates your bottles from the hours you’re away. That’s our arithmetic, not a published rule, so adjust to your baby.

Power pumping, and what it isn’t

Power pumping copies a baby’s cluster feeding. One common pattern: pump 20 minutes, rest 10, pump 10, rest 10, pump 10, once a day for 3 or 4 days [15]. Lactation consultants use it widely, but it’s a consensus technique, not a proven fix. If your supply is low, see an IBCLC (a board-certified lactation consultant) first. Low supply can have medical causes.

Fit, pain and when to get help

The flange (the funnel part) fits when your nipple moves freely in the tunnel without rubbing the sides [16]. Rubbing or a sore nipple can mean it’s too small. Too much areola pulled in, or a lot of swelling, can mean it’s too big [16]. Flanges come in different sizes, and the wrong one can cost you milk and comfort [6][7].

Pumping shouldn’t hurt. A little discomfort at the start can happen, but not for the whole session [7]. Get help from an IBCLC or your pediatrician if:

• your daily output keeps dropping for several days [4];
• pumping hurts, even after you turn the suction down [7];
• you’re trying to boost supply and see no change in 7 days [17].

Call your provider if part of your breast or chest is red, hot, swollen or tender, or you get a fever or flu-like symptoms. These can be signs of mastitis [18].

Stopping

Go slowly. Drop one session, wait a few days, then drop the next. Pump only enough for comfort in between [19]. Stopping suddenly leaves you full, hard and uncomfortable [19].

Sources

1. CDC, “Pumping Breast Milk” and “5 Tips for Returning to Work and Breastfeeding.” cdc.gov, cdc.gov
2. Children’s Mercy Kansas City, “How Many Times to Pump?” childrensmercy.org
3. Seattle Children’s, “Pumping to Start and Establish a Full Milk Supply” (PE2037). seattlechildrens.org
4. Nationwide Children’s, “Your High-Risk Baby and Expressing Milk.” nationwidechildrens.org
5. Children’s Minnesota, “Breast-pumping: When your baby is in the hospital.” childrensmn.org
6. Cincinnati Children’s, “Maintaining Milk Supply with a Breast Pump.” cincinnatichildrens.org
7. Seattle Children’s, “Pumping to Maintain a Full Milk Supply” (PE3855). seattlechildrens.org
8. Children’s Wisconsin, “Working Moms: What’s Your Plan To Continue Breastfeeding?” childrenswi.org
9. Children’s Hospital of Philadelphia, “Breastfeeding and Returning to Work.” chop.edu
10. American Academy of Pediatrics, “Expressing Breast Milk at Work.” healthychildren.org
11. Children’s Mercy Kansas City, “8 frequently asked questions about breastfeeding and pumping.” childrensmercy.org
12. Academy of Breastfeeding Medicine, “Clinical Protocol #36: The Mastitis Spectrum, Revised 2022.” doi.org
13. Stanford Medicine Children’s Health, “Breastfeeding: Returning to Work.” stanfordchildrens.org
14. American Academy of Pediatrics, “How Often and How Much Should Your Baby Eat?” healthychildren.org
15. Children’s Wisconsin (see 8).
16. Children’s Mercy Kansas City, “Does Your Pump Flange Fit?” childrensmercy.org
17. Children’s Mercy Kansas City, “How to Make More Milk.” childrensmercy.org
18. MedlinePlus, “Breast infection.” medlineplus.gov
19. Cincinnati Children’s, “Weaning Tips for Mom.” cincinnatichildrens.org