Quick Answer

The most reliable way to know your baby is getting enough milk is not how much you can see, but what comes out and how your baby grows. Look for wet and dirty nappies (from around day 5, at least 6 heavy wet nappies and at least 2 soft yellow poos in 24 hours), steady weight gain after the first few days, and active feeding with visible, audible swallowing (NHS). A baby who is getting enough also seems content and relaxed after most feeds. It is normal for babies to lose a little weight in the first days and to regain their birth weight by about two weeks (La Leche League). If the signs are not adding up, the first thing to check is the latch, because a deep latch is what lets your baby actually remove the milk, which is what produces all these reassuring signs.

Author: Mylo Editorial Team, Mylo Parenting Desk
Medically reviewed by: Mylo Editorial Board, aligned with NHS, ICMR-NIN and WHO guidance
Last updated: 30 July 2026

Medical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. If your baby has very few wet nappies, is not gaining weight, is very sleepy or hard to feed, or shows signs of dehydration, please contact your doctor or a lactation consultant promptly.

Key Takeaways

• The reliable signs are nappy output, weight gain and active feeding, not how full your breasts feel.

• From about day 5, expect at least 6 heavy wet nappies and at least 2 soft yellow poos in 24 hours (NHS).

• Babies normally lose up to about 7 to 10% of birth weight early, then regain it by around two weeks (La Leche League).

• Watch for visible, audible swallowing and a suck-swallow rhythm during feeds.

• A content, relaxed baby after most feeds is a good sign.

• Fussiness, short or long feeds, and softer breasts are not reliable signs of low supply.

• If the signs are off, check the latch first, then get lactation help.

The Reliable Signs at a Glance

Because you cannot measure how much milk a breastfed baby takes, you rely on indirect signs. Three matter most: what goes in the nappies, how your baby grows, and how they feed. Let us take each in turn.

Wet and Dirty Nappies

Nappies are one of the clearest windows into whether your baby is getting enough. Output builds over the first week as your milk comes in (NHS).

Wet nappies should have pale, mild-smelling urine. Dark, strong-smelling urine or very few wet nappies is a sign to seek help.

Steady Weight Gain

Weight is the other objective measure, and your midwife or doctor will track it. A little loss at first is completely normal (La Leche League).

If your baby has lost more than about 10% of birth weight, or has not started regaining by the end of the first week, have feeding assessed promptly.

Active Feeding and a Content Baby

How your baby feeds tells you a lot. Signs that milk is transferring well include (NHS):

• Visible and audible swallowing: you see your baby's chin drop and pause, and may hear a soft swallow.

• A suck-swallow rhythm that becomes slower and deeper once the milk flows.

• Your baby feeds 8 to 12 times or more in 24 hours in the early weeks.

• Your baby comes off the breast on their own, calm and relaxed, and seems content after most feeds.

• Your baby is alert and healthy when awake, with good colour and firm skin.

Signs That Are NOT Reliable

Many things that worry parents are not actually signs of low supply. On their own, these do not mean your baby is not getting enough:

• Fussiness or cluster feeding, especially in the evenings, which is normal newborn behaviour.

• Short or long feeds; babies feed at different speeds.

• Softer breasts after the early weeks, which is normal as supply regulates.

• Not feeling a let-down, which many mothers never feel.

• How little you can pump, since a pump is less efficient than a well-latched baby.

Judge by nappies, weight and feeding, not by these.

If the Signs Are Off, Check the Latch First

Here is the link that ties it all together: nearly every reassuring sign above depends on your baby actually removing milk, and that depends on the latch. A shallow latch means milk is not drained well, which shows up as fewer wet nappies, slow weight gain, very long or frequent unsatisfied feeds, and often sore nipples for you. So if the signs are not adding up, the first thing to fix is usually the latch (WHO).

• Aim for a deep latch: nose to nipple, wait for a wide gape, and bring your baby on chin first for a big mouthful of breast.

• Feed frequently and effectively: let your baby finish one breast well before offering the other.

• Watch for active swallowing during feeds as a sign milk is transferring.

• Get hands-on help early: an IBCLC lactation consultant can correct the latch and reassure you quickly.

Fixing the latch often turns the reassuring signs around within days.

When to See a Doctor

Contact your doctor or a lactation consultant promptly if your baby:

• Has very few wet nappies, or dark, strong-smelling urine.

• Is not gaining weight, or has not regained birth weight by about two weeks.

• Is still passing dark meconium beyond day 4 to 5, with no soft yellow stools.

• Is very sleepy, floppy or hard to wake for feeds.

• Shows signs of dehydration, such as a dry mouth, sunken soft spot, or no tears.

A Note on Milk Supply and Reassurance

If the signs suggest your baby is not getting quite enough, the fix is almost always about feeding: a deeper latch and more frequent, effective milk removal, ideally with a lactation consultant's help. No food or supplement can substitute for that. Once your latch is good and you are feeding often, frequent removal builds supply, and some mothers use traditional lactation blends for extra support alongside a good diet, such as Mylo LactoMama™ Lactation Granules, which use shatavari as the hero ingredient. Reassurance comes from nappies, weight and feeding; treat supplements only as supply support, and always have feeding assessed if you are worried. Breastfeeding, with skilled support, is recommended along with timely complementary foods from six months and continued up to two years (ICMR-NIN).

Myths vs Facts

Frequently Asked Questions

How do I know my baby is getting enough milk?
By the reliable signs: enough wet and dirty nappies, steady weight gain after the first few days, active feeding with visible swallowing, and a content baby after most feeds (NHS).

How many wet nappies should a newborn have?
Output builds over the first week. From around day 5, expect at least 6 heavy wet nappies in 24 hours, with pale, mild-smelling urine.

How many dirty nappies are normal?
From about day 4, at least 2 soft yellow poos a day in the early weeks. Stools change from dark meconium to green to yellow as your milk comes in. After a few weeks, some babies poo less often, which can be normal if stools are soft and the baby is thriving.

Is it normal for my baby to lose weight after birth?
Yes. Losing up to about 7 to 10% of birth weight in the first few days is normal, and most babies regain their birth weight by around two weeks (La Leche League).

Does a fussy baby mean I have low milk supply?
Not on its own. Fussiness and cluster feeding are normal. Judge supply by nappies, weight and feeding rather than by fussiness.

What if the signs suggest my baby is not getting enough?
Check the latch first, aim for a deep latch and frequent effective feeding, and see a lactation consultant. Fixing the latch often improves the signs within days (WHO).

When should I worry?
See a doctor if your baby has very few wet nappies, dark urine, no weight gain, ongoing dark stools past day 4 to 5, is very sleepy, or shows signs of dehydration.

References

1. NHS. Breastfeeding: is my baby getting enough milk? nhs.uk

2. La Leche League International. Signs Baby Is Not Getting Enough Breastmilk. llli.org

3. Office on Women's Health (U.S. Department of Health and Human Services). Getting a good latch. womenshealth.gov

4. World Health Organization (NCBI Bookshelf). The physiological basis of breastfeeding. ncbi.nlm.nih.gov

5. ICMR-National Institute of Nutrition. Dietary Guidelines for Indians, 2024. nin.res.in

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