How do I know if my baby is feeding enough?
The signs that matter, the signs that don't, and when to call someone.
In short
After the first week, six or more heavy wet nappies in 24 hours with pale yellow urine is the standard sign a baby is feeding enough. Steady weight gain over time matters more than any single weigh-in.
- Wet nappies build by one a day in the first week, reaching 5 or 6 a day from day 5.
- Most babies lose up to 10% of their birth weight and are back to it by 2 weeks.
- After that, average weight gain is around 150 to 200g a week for the first few months.
- Fewer than 6 wet nappies a day after week one, dark urine or lethargy: ring the PHN or GP.
- Hiccups, small spit-ups and wanting to feed again 45 minutes later rarely mean a feeding problem.
This question keeps more new parents awake than almost anything else. Especially with breastfeeding, where you can't see how much milk has actually gone in. Here's the plain-English answer. It pairs with our guide on how often a newborn should feed.
How many wet nappies should a baby have a day?
Wet nappies are your most reliable home indicator. The rough guide:
- Day 1: 1 wet nappy
- Day 2: 2 wet nappies
- Day 3: 3 wet nappies
- Day 4: 4 wet nappies
- Day 5 onwards: 5 or 6 wet nappies a day, every day
After the first week, six or more wet nappies in 24 hours is the standard "feeding adequately" sign. The nappies should feel heavy, with pale yellow urine. Strong yellow or dark urine suggests not quite enough fluid.
What about dirty nappies?
In the first six weeks, dirty nappies are also reassuring. Several a day is normal, especially in breastfed babies. The colour for a breastfed baby is usually mustard yellow and seedy. Formula-fed is firmer and more brown. Both are fine.
After 6 weeks, breastfed babies can drop down to one dirty nappy every few days, sometimes a whole week. This is normal and not constipation, as long as the baby is otherwise content.
How much weight should a baby gain each week?
This is the one most parents worry about. The realistic version:
- Most babies lose up to 10% of their birth weight in the first few days. This is normal.
- They should be back to birth weight by 2 weeks.
- After that, average weight gain is around 150 to 200g a week for the first few months.
- This slows down as they get older.
But here's the thing. A single weigh-in is not a verdict. Trends matter. Your PHN will plot the weights over time. One slightly lower reading on a day when they happened to do a big poo before the scales is not a problem.
What are the signs my baby is not feeding enough?
Worth a call to the PHN or GP if you notice:
- Fewer than 6 wet nappies a day after the first week
- Dark, strong-smelling urine
- The baby seems lethargic, hard to wake for feeds
- Persistent green or watery poo (in a formula-fed baby)
- Weight loss after the first two weeks
- Visible jaundice that's getting worse rather than better
None of these are emergencies on their own, but they're worth flagging.
Which feeding worries usually turn out to be nothing?
A few things that worry parents but rarely mean a feeding problem:
- Hiccups (very common, doesn't bother the baby)
- Spitting up small amounts of milk after feeds
- Wanting to feed again 45 minutes after a "full" feed, especially in the evening (see cluster feeding)
- Sleeping through a feed at night, once the baby's a few weeks old and gaining weight steadily
- Not wanting both breasts at every feed
- The dummy, finger, or anything they can reach in their mouth
When should I ring the PHN or GP about feeding?
Any time the answer to "is this fine?" is "I'm not sure", ring the PHN or GP. Out of hours, HSELive (1800 700 700) is open 24/7.
The PHN would much rather you ask about something that turns out to be fine than wait three days on a problem.
The HSE has detailed feeding guidance for the early weeks if you want a fuller picture.
How do I keep track of my baby's feeds and nappies?
You don't need to obsess. You just need a record of the wet nappies each day and the weights from the PHN visits, on paper or on your phone. Knowing your baby had 7 wet nappies yesterday is a lot more reassuring than guessing.
Lullagram makes this a one-tap thing. Feeds, nappies, weights, all in the same place. You see the patterns at a glance. And when the PHN asks "how often is she feeding?", you've got a real answer. It is free to try on Android, iPhone and web.
Sources and guidance
This guide is written to be consistent with the official guidance below. It is general information for parents in Ireland, not medical advice. Links checked 17 September 2026.
Really good app. There are loads of additional extras outside the tracking but really helps if parents are taking night shifts and you want to see what has happened before you took over. The timing to let you know when the next feed potentially is also quite handy. loads of reports for the health nurse too. One stop shop for everything really.