Pumping schedules: for work, exclusive pumping and building a stash

Pump about as often as your baby would eat. CDC says newborns breastfeed about 8 to 12 times in 24 hours, and if you pump instead, "try to pump as often as your baby is drinking breast milk" ^[1][2]. At work, the Office on Women's Health says parents typically pump every 2 to 3 hours, or two to three times in an 8-hour shift ^[10].

The schedules below put that public health guidance on a clock. They're examples, not prescriptions. Your baby's cues and your care team's advice come first, and a lactation consultant can tailor a plan to you.

For context, AAP recommends exclusive breastfeeding for about the first 6 months, then continuing alongside solid foods for as long as you and your child want, to 2 years or beyond ^[22]. Pumped milk counts toward that.

The basics: how often and how long

• Frequency. Babies may want to eat as often as every 1 to 3 hours in the first days, about 8 to 12 times in 24 hours ^[1]. AAP says a newborn shouldn't go longer than about two to three hours during the day or four hours at night without a feeding ^[5]. Pumping sessions follow the same rhythm.
• Nights matter. The Academy of Breastfeeding Medicine (ABM) says "night feedings are particularly important for maintaining copious milk production" ^[6].
• Session length. WIC says to expect "around 15-20 minutes or longer pumping each breast" while you're learning ^[4]. The Office on Women's Health says about 10 to 15 minutes once you're used to your pump ^[9].
• Double pumping. Pumping both breasts at once "may collect more milk in less time" ^[3].
• Don't chase "empty." ABM's mastitis protocol says not to aim to "empty" the breasts, and that people who pump should express at a frequency and volume that mimics breastfeeding ^[7].

If output is low, CDC suggests adding an extra pumping session ^[2].

Exclusive pumping schedule for a newborn

If you're pumping instead of nursing, your sessions replace your baby's feeds. Here's one way to fit 8 sessions into 24 hours, the low end of CDC's 8 to 12 range ^[1], with no gap longer than three hours:

To reach 10 or 12 sessions, shorten the daytime gaps to about two hours.

How much to expect. ABM gives a typical goal of 700 to 980 mL a day (25 to 35 ounces) by days 10 to 14, and says that volume is expected to hold for the first 6 months ^[6].

As your baby grows. The number of feedings may go down as your baby gets older ^[9]. ABM says babies 6 to 12 months old may nurse 5 to 6 times a day ^[6], so your sessions can taper with them. Check with your baby's doctor or a lactation consultant before you cut back.

If your baby is in the NICU, AAP's advice for very premature babies is to pump within 6 to 8 hours after delivery, then 5 to 6 times a day, every 3 to 4 hours and at least once in the middle of the night, or more often once your breasts begin to fill ^[8]. ABM calls a hospital-grade double electric pump the ideal for parents fully replacing breastfeeding with pumping ^[6]. See how insurance covers pump rentals.

Going back to work: a pumping schedule

At work, pump during the times you'd feed your baby at home ^[9]. The Office on Women's Health says that's usually every 2 to 3 hours, two to three times per 8-hour shift, or three to four times on a 12-hour shift. Each session can take 15 to 20 minutes, not counting the walk to the room ^[10].

Here's an example for an 8-hour workday with a baby at child care:

How much to send. Breastfed babies between 1 and 6 months old take an average of 2 to 3 ounces per feeding ^[9]. ABM says babies in daycare typically take 2 to 4 ounces per feeding ^[17]. So a baby who eats three times while you're away needs roughly 6 to 9 ounces at the 2 to 3 ounce average.

Before your first day back:

• A few weeks out: start pumping. CDC suggests "pumping a few weeks before returning to work" ^[2], and building a supply of frozen milk ^[11].
• Introduce a bottle: the Office on Women's Health suggests waiting at least a month after birth before introducing a bottle ^[9]. WIC suggests one or two bottle feedings a day in the week or two before you go back ^[12].

Your rights at work. Under the federal PUMP Act, most employers must give you break time "each time such employee has need to express the milk" for one year after birth, in a private space that isn't a bathroom ^[13]. Our guide to pumping at work covers who's protected and what to do if your employer says no.

Building a freezer stash

WIC's advice is simple: to have stored milk for times apart, "pump after nursing and while your baby is asleep." You may get the most milk right after you wake up in the morning ^[14]. One extra session after the first morning feed, a few weeks before you go back, adds up.

How big should it be? Smaller than social media suggests. The milk you pump at work on Monday feeds your baby on Tuesday, so the stash mainly covers your first day back plus a cushion. ABM's hyperlactation protocol notes that parents sometimes don't realize they "do not need to store high volumes of milk for return to work," and that oversupply can come from "excessive pumping in addition to breastfeeding" ^[15].

Freezing tips:

• Store 2 to 4 ounces, or the amount your baby takes at one feeding ^[16]. ABM notes smaller amounts help prevent waste ^[17].
• Label each bag with the date you pumped it ^[16].
• Leave about an inch at the top, since milk expands as it freezes ^[16].
• Thaw the oldest milk first ^[16].

How long pumped milk keeps

CDC's storage times for freshly pumped milk ^[16]:

CDC also says never to refreeze milk once it has thawed ^[16].

Cleaning your pump. Clean the parts that touch milk as soon as you can after each session. For extra germ removal, CDC says to sanitize pump parts at least once a day, especially if your baby is under 2 months old, was born early or has a weakened immune system. Air-dry parts instead of rubbing them with a dish towel ^[18].

Weaning from pumping

Go slowly. WIC says weaning "is most comfortable for mom and baby when it is done slowly—over several weeks or months," and that going slowly helps you avoid engorgement ^[20]. AAP describes dropping one feeding every two or three days, or even once a week ^[19]. Applied to pumping, that means dropping one session, holding there for a few days, then dropping the next.

WIC lists skipping a few feedings or pumping sessions as one cause of engorgement. If you feel uncomfortably full, it says to express only enough milk to soften your breasts or feel comfortable, because expressing more can encourage your body to keep making milk ^[21].

When to talk to a lactation consultant

Pumping shouldn't hurt. ABM notes that pumps can injure breast tissue when flanges don't fit, suction is too high, or sessions run too long ^[7]. Get help if pumping is painful, your output drops and doesn't recover, you keep getting engorged, or you're planning exclusive pumping or a return to work and want a plan.

Find a lactation consultant near you, and see when to see a lactation consultant. Most health plans must cover breastfeeding support and counseling ^[23]. Our guide to whether insurance covers lactation consultants explains how. Still need a pump? Start with how to get a breast pump through insurance.