Aim to spend 15 to 20 minutes hooked up to the pump to net a good amount of breast milk (some women will need 30 minutes or more with the pump, especially in the early days). Pump until the milk starts slowing down and your breasts feel well-drained. Be sure to clean the breast flanges after every use.
If the breasts do not get emptied completely or often enough, the body begins to produce less milk. Some mothers say the milk never stops flowing while they pump. Typically, you should not pump longer than 30 minutes, even if the milk is still flowing.
Generally, moms should be pumping every 3 hours. Pumping more often can help stimulate breasts to produce more milk. Moms can try pumping both breasts for 15 minutes every two hours for 48-72 hours. Then moms can return to their normal pumping routine. Pumping for longer than 30 minutes may not be beneficial.
If you're pumping for a freezer stash or to store milk for a future separation from your baby, try pumping shortly after you finish nursing – maybe 15 to 30 minutes. That way, your body will have an hour and a half or so to replenish breast milk for your next nursing session.
During the early stages of exclusively pumping, avoid going more than 5-6 hours between sessions. While it can get exhausting, pumping 1-2 times per night will ensure that you have a sufficient milk supply for your baby. If you're a working mom, aim to pump every 3-4 hours per 8 hour work period.
Ultimately, if your baby has reached its birth weight and you're pumping enough milk during the day, it's okay to sleep eight hours without pumping at night. Keep in mind there is an adjustment period for your body as it begins to acclimate to the decrease in overnight milk removal.
If You Miss a Night Pumping Session
If you accidentally miss a pumping session now and then, there is no need to fret, as it most likely will not harm your supply — especially if you can squeeze in another session at a different time of the day.
When your breasts are empty, they will probably feel lighter and no longer uncomfortably full, as they might have at the start of the pumping session. You can also pick them up to see if they still feel heavy or full of milk. Pumping sessions typically take about 15 to 20 minutes.
Adequate hydration also is important for breast milk production. The amount of liquid you put into your body affects how much breast milk you can produce. I encourage women to carry a bottle of water for themselves in their diaper bag.
How do I know whether my breasts are empty? There's no test or way to know for sure. In general, though, if you gently shake your breasts and they feel mostly soft and you don't feel the heaviness of milk sitting in them, you're probably fine.
Pumping Positions
You don't want poor posture during breast pumping because it may lead to irritation. Instead, sit or stand upright with your shoulders open, back straight, feet flat on the floor and arms supported. Try a pillow or armrest to help hold your bottles or milk catcher steady while pumping.
Many women naturally make more milk than their infant needs. Sometimes an oversupply is created by over stimulating the breasts by doing both breastfeeding and pumping. Having an oversupply of breast milk can be uncomfortable for both a mother and infant.
The 120 minute rule is that, generally speaking, when you are exclusively pumping, you want to spend at least 120 minutes (2 hours) per day pumping. How many sessions you would spread that 120 minutes across depends on how old your baby is. With a newborn baby, you might want to do eight 15 minute sessions.
Ideally, you should pump for at least 15-20 minutes from each breast. In the early days, it may take 30 minutes or more and that is fine unless your breasts do not pain on touch. While pumping, the breast milk may take a few minutes to come out.
If your baby wants to breastfeed right after breast pumping, let them! Some babies are patient and will just feed longer to get the milk they need.
A decrease in milk supply is completely normal! In fact, milk supply can vary from day-to-day, or week-to-week. As long as your baby is continuously asking to feed and is getting milk at each session, dips in milk supply are not a reason to worry.
Caffeine. It's not just tea and coffee that contains caffeine, it's in chocolate and various energy drinks and soft drinks. It's wiser to cut caffeine out while breastfeeding as it's a stimulant which can make your baby restless.
Possible causes of low supply
Your baby does not feed often enough. Nearly all babies need to feed at least 8 to 12 times in 24 hours. Your baby does not feed effectively at the breast. You have started using formula milk as well as breastfeeding.
Your breasts feel softer
This happens as your milk supply adjusts to your baby's needs. The initial breast fullness reduces in the first few weeks. At around 6 weeks, breast fullness is completely gone and your breasts may feel soft. This is completely normal and has no effect on your milk supply.
Some women feel the let-down reflex as a tingling sensation in the breasts or a feeling of fullness, although others don't feel anything in the breast. Most women notice a change in their baby's sucking pattern as the milk begins to flow, from small, shallow sucks to stronger, slower sucks.
When you first start pumping, you might see milk start to dribble out. Then, after a few minutes, milk may start to spray - this is your milk letting down. After some time, the letdown will finish and you'll be back to a dribble.
Double-pumping is exactly what it sounds like: using a breast pump that allows you to express milk from both breasts at the same time.
Some might feed every 90 minutes, whereas others might go 2–3 hours between feedings. Newborns should not go more than about 4 hours without feeding, even overnight.
Trying not to go more than 4 hours without pumping/nursing is a general breastfeeding rule while breastmilk is being established. It's best to wait until after the first 12 weeks to start eliminating pumping sessions.