How Do I Know If My Baby Is Getting Enough Breast Milk?
- Karen Williams IBCLC
- 3 days ago
- 10 min read
“How do I know my baby is getting enough breast milk?”
This is probably one of the most common questions I hear from breastfeeding parents.
And honestly? I completely understand why.
When your baby is feeding directly from your breast, there isn't a handy little measuring line telling you they've had 60ml or 90ml.
You can't see exactly how much milk is going in.
So when your baby wants to feed again shortly after you've just finished, it's very easy to think:
“They can't still be hungry... can they?”
And then the worry starts.
Do I have enough milk?
Is my baby getting enough breast milk?
Why are they feeding ALL the time?
Should I be pumping?
Do I need to give a top-up?
Before you know it, it's 2am and you've fallen down a breastfeeding Google rabbit hole. 😅
So let's take a breath and look at the actual signs your baby is getting enough breast milk — and some of the things that really don't tell us as much as you might think.
What are the signs my baby is getting enough breast milk?
There isn't one magic sign that tells us everything.
When I assess breastfeeding as an IBCLC, I look at the whole picture.
That includes:
your baby's wet and dirty nappies
their weight and growth
how they feed
whether they're swallowing
what are they doing with their tounge
if there is tension in the body and how it can effect their ability to transfer milk
how effectively they're transferring milk
their behaviour
your milk supply
how comfortable breastfeeding is for you
and, importantly, what's happening over a whole 24-hour period rather than just one feed
Because babies are individuals, mums are individual we have two bodies to look at to co work.
And breastfeeding isn't an exact science where every feed has to look the same.
💧 How many wet nappies should a breastfed baby have?
Your baby's nappies are one of the useful clues we have about how much milk they're taking in.
In the first few days, nappies change as your milk transitions from colostrum to more abundant milk.
A useful rule of thumb in those early days is to expect approximately:
Day 1 – at least 1 wet nappy
Day 2 – at least 2
Day 3 – at least 3
Day 4 – at least 4
Day 5 – at least 5
Day 6 onwards – around 6 or more good, wet nappies in 24 hours
I'm looking for nappies that are genuinely wet and getting heavier as your baby's milk intake increases.
Once breastfeeding is established, regular heavy, pale or light-coloured, relatively odourless urine is reassuring.
And remember — we're looking at the pattern, not trying to pass a “how many nappies did you produce today?” exam. 😂
What about poo?
Your baby's stools should change as their milk intake increases.
The first stools are meconium — black, sticky and almost tar-like.
Over the next few days they usually become greener and then transition towards yellow, loose and often seedy stools as milk intake increases.
By around day 4–5, we would generally expect stools to have transitioned towards that familiar yellow breastfed-baby poo.
In the early weeks, I'm looking for regular stools — often at least two good-sized stools in 24 hours — alongside all the other signs that feeding is going well.
There can be individual variation, though, so nappies should always be considered alongside your baby's weight and feeding.
⚖️ Is my breastfed baby gaining enough weight?
Your baby's weight is another really important part of the picture.
It's normal for newborn babies to lose some weight after birth.
A weight loss of around 8% by day 3 can occur as part of normal newborn adaptation, although the pattern and individual circumstances matter. for example if you had a c-section, the fluids you had during labor will have transferred to your little one, meaning their birth weight may have been inflated, meaning their loss may be due to them weeing out the excess fluid.
What we want to see is that your baby then starts gaining appropriately.
One thing I really want parents to know is:
Slow weight gain doesn't automatically mean you don't have enough breast milk.
There can be lots of reasons why a baby isn't gaining as expected.
Sometimes there is a genuine milk supply issue.
Sometimes there is plenty of milk, but baby isn't transferring it effectively.
Sometimes positioning or attachment is making breastfeeding harder.
Sometimes there are infant factors involved.
Birth circumstances can also influence how quickly milk production transitions and how effectively feeding gets established.
Sometimes it's a combination of several things.
So if weight gain is a concern, I want to ask:
“What's happening here?”
rather than jumping straight to:
“How can we make mum produce more milk?”
👅 What does milk transfer look like?
This is one of the things I love looking at during an IBCLC assessment.
Because watching a baby feed can tell us so much.
Once milk starts flowing, you may notice your baby's sucking pattern change.
Instead of lots of quick, shallow sucks, you may see deeper jaw movements with pauses as your baby swallows.
You may even hear those lovely little swallowing sounds.
You might notice the jaw dropping from the jaw joint, with the tongue and chin moving as your baby actively transfers milk.
You don't need to sit there counting every swallow, you will quickly understand that maybe they have a long burst of swallowing, rest, long burst again. this will happen a few times, than you may see those burst slow down, become fewer. try a breast compression, see what happens. usually you will see active feeding again, but this may only last a few minuets, try switching sides at this point
We're looking for the bigger picture:
Is baby actually drinking?
And I'm also looking at what happens around that milk transfer.
For example:
Is baby maintaining their attachment?
Are they repeatedly slipping off?
Are they clicking?
Are they tiring?
Is their tongue moving effectively?
Is there a good wave-like tongue movement?
Are they thrusting their tongue?
Is there tension through their body?
Are they holding the breast securely?
Are their lips creating a good seal?
Sometimes little clues such as clicking, lip blisters or a white/blanched area around the lips can tell us something about how baby is using their mouth.
None of these signs should be looked at in isolation.
That's the important bit.
I'm not looking for one symptom. I'm putting the whole picture together.
👶 Is my baby feeding enough if they feed all the time?
Ahhh, cluster feeding.
The thing that makes so many parents think their milk supply has disappeared overnight.
Your baby feeds.
You think:
“Great, we're done.”
You put your top back on.
Five minutes later...
👶 “Excuse me. I'd like the boob again.”
And then again.
And again.
And you're thinking:
“Surely I can't have enough milk if they're this hungry?”
But here's the thing:
Frequent breastfeeding does not automatically mean low milk supply.
Babies feed for lots of reasons.
They're hungry.
They're growing.
They're tired.
They need comfort.
They want closeness.
They are regulating themselves.
Sometimes they simply want to breastfeed.
That's normal.
However...
If your baby is feeding constantly and you're also concerned about weight gain, nappies, milk transfer, pain or very long feeds, then I would want someone to take a proper look at what's happening.
As an IBCLC, I want to know:
How often is baby feeding over 24 hours?
What is actually happening during those feeds?
Are they transferring milk effectively?
Are we seeing active swallowing?
Could switch feeding or breast compressions help?
Is baby becoming tired before they've taken enough milk?
That's much more useful than simply saying:
“Your baby feeds a lot, so you must have low supply.”
🥛 My breasts feel soft. Does that mean I have low milk supply?
Nope.
This is such a common worry.
In the early days your breasts can feel ridiculously full.
Then things start to settle.
Your breasts become softer.
And suddenly you're thinking:
“Oh no. My milk is disappearing!”
But softer breasts don't automatically mean low milk supply.
As your milk production regulates, your body becomes better at matching production to what your baby needs.
So your breasts don't have to feel rock hard for milk to be there.
Soft breasts are healthy breasts and usually make plenty of milk.
🍼 I only pumped 30ml. Does that mean I don't have enough milk?
No.
And this is a really important one.
Pump output is not a direct measurement of your milk supply.
Your baby and your breast pump are two very different milk-removal systems.
The amount you express can be affected by:
when your baby last fed
your pump settings
flange fit
how long you pump
whether you're comfortable
stress
hormones
how used to expressing you are
the type of pump you're using
So please don't look at a bottle containing 30ml and think:
“That's all my baby is getting.”
It doesn't work like that.
And most breastfeeding parents do not need to build a huge freezer stash just in case.
If you're planning to be separated from your baby, going back to work or simply want some milk available, we can work out what you actually need rather than turning expressing into another full-time job.
⏰ How long should a breastfeeding feed take?
There isn't a magic number of minutes that every breastfeeding session should take.
Some babies are speedy little feeders.
Some like to take their time.
Some are sleepy.
Some are easily distracted.
Some appear to be training for the Olympic breastfeeding team. 😂
What matters isn't simply how long your baby feeds.
It's what they're doing while they're feeding.
Are they swallowing?
Are they transferring milk?
Are they able to stay attached?
Are they comfortable?
Are they gaining weight?
Are you comfortable?
A 10-minute feed isn't automatically a brilliant feed.
And a 45-minute feed isn't automatically a bad one.
Effective milk transfer matters more than the clock.
❤️ And then there's YOU
This bit often gets forgotten.
How are you feeling about breastfeeding?
Are you comfortable?
Are feeds painful?
Are you constantly worrying about your milk supply?
Do you feel like you're feeding all day and never getting a break?
Are you exhausted from trying to work out whether everything is normal?
Does something just feel...
not quite right?
You don't need to have a dramatic problem before you're allowed to ask for help.
Sometimes that little niggling feeling is worth listening to.
So, how do I know my baby is getting enough breast milk?
Think about the whole picture.
💧 Nappies
Are your baby's wet and dirty nappies appropriate for their age?
⚖️ Weight
Is your baby gaining weight appropriately?
👂 Swallowing
Can you see and hear your baby actively transferring milk?
👅 Feeding
Is your baby attaching and staying attached effectively?
🍼 Milk transfer
Is your baby actually removing milk from the breast?
👶 Behaviour
Does your baby generally appear well, alert and responsive?
❤️ You
Are you comfortable and feeling confident about feeding?
When all those pieces fit together, we get a much clearer picture of whether your baby is getting enough breast milk.
When should I get breastfeeding help?
Please don't wait until you're completely exhausted or at breaking point.
I'd recommend getting breastfeeding support if:
you're worried your baby isn't getting enough milk
your baby isn't gaining weight as expected
you're seeing fewer wet nappies
your baby is very sleepy or difficult to wake for feeds
breastfeeding is painful
your baby repeatedly struggles to latch
feeds are consistently very long
your baby is constantly feeding and you're worried something isn't right
you're worried about milk transfer
you're worried about your milk supply
you're pumping and concerned about your output
you've been advised to supplement and want support with your feeding plan
or you simply have that “something isn't quite right” feeling
You don't need to have a diagnosis before asking for help.
How can an IBCLC help?
Sometimes you don't need someone to come in and change everything.
Sometimes you just need someone to say:
“Yep. Your baby is getting plenty of milk. Here's how we know.”
What a relief that can be.
Other times, there is something getting in the way.
Maybe baby isn't transferring milk as effectively as they could.
Maybe breastfeeding is painful.
Maybe your supply needs some support.
Maybe pumping isn't working well for you.
Maybe there are several little things adding up.
That's where an IBCLC breastfeeding assessment can be so useful.
We can look at what's actually happening rather than guessing.
And if everything is going brilliantly?
I'll tell you that too.
Sometimes reassurance is exactly what you need.
You don't have to work it all out yourself
If you're sitting there thinking:
“I just don't know if my baby is getting enough breast milk.”
Please know you're not the only one.
And you don't have to spend another night Googling every breastfeeding symptom.
You can ask for help.
I'm Karen, an IBCLC (International Board Certified Lactation Consultant), providing specialist breastfeeding and lactation support to families across North Wales.
I'll listen to what's happening, look at the whole feeding picture and help you work out what's going on.
Sometimes the answer is:
“You're doing brilliantly — here's how we know.” ❤️
And sometimes it's:
“Right, we've found something that's making feeding harder. Let's make a plan.”
Either way, you deserve to understand what's happening with your breastfeeding.
You don't have to wait until you're completely exhausted or at breaking point to ask for support.
Frequently Asked Questions
How do I know if my breastfed baby is getting enough milk?
Look at the whole picture, including your baby's wet and dirty nappies, weight gain, swallowing, milk transfer, feeding behaviour and overall wellbeing. No single sign can tell you everything.
What are the signs my newborn is getting enough breast milk?
Regular wet nappies, appropriate stool changes, active swallowing during feeds, appropriate weight gain and effective milk transfer are all reassuring signs.
Does feeding frequently mean I have low milk supply?
No. Frequent feeding and cluster feeding can be completely normal. However, if frequent feeding occurs alongside poor weight gain, reduced nappies, painful feeds or concerns about milk transfer, it's worth having breastfeeding assessed.
Does pumping a small amount mean I have low milk supply?
Not necessarily. Pump output is not a direct measurement of your milk supply. Babies can often remove milk differently from a breast pump, and many factors can affect how much milk you express.
How can I increase my breast milk supply?
Before trying to increase your supply, it's important to establish whether you actually have a low milk supply and, if so, why. An IBCLC can assess feeding, milk transfer, feeding frequency and other factors that may be affecting milk production.
When should I get help with breastfeeding?
You can ask for help whenever you're worried. You don't need to wait until breastfeeding becomes unbearable. Early support can help identify problems and, just as importantly, provide reassurance when things are going well.
Worried about whether your baby is getting enough milk?
You don't have to figure it out alone.
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