Short answer: far less than Instagram wants you to believe. Anywhere from half an ounce to about 3.5 oz per session (roughly 15 to 100 ml) is normal, depending on the time of day, your baby's age and how long ago the last feed was. Mornings usually go better than evenings, and right after a nursing session there is naturally less to collect.
Important to know: the pump does not measure what your baby drinks. Babies are far more efficient at the breast than any pump. A thin pumping session says nothing about whether your baby is getting enough when nursing.
All the amounts here are ballpark figures. If you are worried about your baby's weight gain, talk to your pediatrician or a lactation consultant.
Every pumped drop is precious, so none of it should go to waste. These times apply to healthy, full-term babies and cleanly pumped milk:
| Where | Keeps for |
|---|---|
| Room temperature | up to 4 hrs |
| Fridge | up to 4 days |
| Freezer | up to 6 months |
| Thawed in the fridge | 24 hrs |
A few practical tips: label every portion with the date, freeze in small amounts (2 to 4 oz, so nothing has to be poured away) and store milk at the back of the fridge, not in the door. Thawed milk should not be refrozen.
These are guidelines too, not guarantees. Stricter rules apply for preemies and sick babies; in that case your pediatrician is the right person to ask.
Which side was last? How much came together today? How many bags are in the freezer? As long as those questions keep circling in your head, you are never actually done pumping. Once they are written down, your head is free.
And a stash you can see changes everything: you can leave the house without doing math. Your partner can take the night feed while you sleep straight through. Pumped milk turns into shared responsibility.
Darli logs the amount per side with one tap, and the timer runs along while you pump. No sticky notes on the fridge, no mental math at 3 a.m., and no app grading your output against somebody else's.
The stats show you daily totals and patterns: when your productive sessions tend to fall, how your output develops over the weeks and what was different today. So you see progress where before you only had scattered numbers.
Sleep, feeds, diapers: one tap is enough. Darli sorts the rest.
It depends on your goal. To build a small stash, one session a day is often enough, ideally in the morning. If pumping replaces full nursing sessions, follow their rhythm, usually 6 to 8 times in 24 hours. A lactation consultant can help tailor a pumping schedule to your situation.
Anywhere from half an ounce to about 3.5 oz per session is within the normal range. Output depends on the time of day, practice and how long ago the last feed was. And it says nothing about how much your baby drinks at the breast, because babies are more efficient than any pump.
As a guideline: up to 4 hours at room temperature, up to 4 days in the fridge, up to 6 months in the freezer. Thawed milk keeps for another 24 hours in the fridge and should not be refrozen. Stricter rules apply for preemies; ask your pediatrician about those.
Power pumping mimics cluster feeding: alternating pumping and resting for an hour, for example 20 minutes on, 10 off, 10 on, 10 off, 10 on. That signals more demand to your body and can increase supply after a few days. It is not a must, just a tool for phases when you want to boost your output.
No, you do not have to do anything. Logging is not a performance review, it is relief: one tap in Darli, and side, amount and time are off your mind. If the numbers stress you out on a given day, skip them. The app works for you, never the other way around.
This guide is not a substitute for medical advice. If you are worried about your child, talk to your pediatrician or midwife.
