Months 1–3.
The 2-month mark comes and goes. Feeds settle, nights start to stretch, and spit-up gets its own section.
Every answer here is checked by an International Board Certified Lactation Consultant, the clinical credential for infant feeding. Where our IBCLC’s guidance differs from a published source, the answer says so.
Months 1–3: 6 things, in order.
About 8 minutes. Read it top to bottom, or tap the one you need. The short version is at the end.
- Around 2–3 months
- 4–5 oza feed (120–150 ml), every 2–4 hours
- A day
- ≤32 ozabout 2½ oz per pound of body weight
- Nights
- Still waking?Normal. Feed them.
Step 1: How much
4–5 oz. And it stays there.
- 1 month3–4 oz
- 2 months4–5 oz
- 3 months4–5 oz
About 4–5 oz (120–150 ml) every 2–4 hours. That generally stays the same and doesn’t increase.
The AAP and Nemours describe feeds growing toward 6–8 oz by 6 months. Our IBCLC’s guidance is 4–5 oz from about 2 months. The daily guide doesn’t change: about 2½ oz per pound of body weight, and no more than about 32 oz a day.
Sources: Nemours KidsHealth; AAP; CDC Guidance from our IBCLC
Most likely a growth spurt. Feed more when they ask.
Growth spurts often come around 3 to 6 weeks, and babies can feed much more often for a few days. It settles again within a few days.
Sources: AAP; Nemours KidsHealth; NHS
Step 2: Nights
Longer stretches come. Don’t force them.
The late feed, in Nemours’ example
Without
7pm feedWakes 2am
With a late feed
7pm feed11pm feedWakes 5–6am
It moves a feed. It doesn’t drop one.
For most babies, yes, once they’re back to birth weight and gaining steadily.
Not sure? Check with your pediatrician. And some babies keep waking at night to feed. That’s completely normal.
Sources: AAP; Mayo Clinic Guidance from our IBCLC
You don’t, while your baby is still asking for it.
Some babies gradually start sleeping longer stretches on their own. If your baby wakes hungry, feed them. Night feeds at this age are normal and expected.
It can buy you a longer stretch of sleep.
Nemours gives an example: baby sleeps after a 7pm feed and wakes at 2am. Try waking them for a feed at 11pm instead, then putting them back down. The next wake-up may move closer to 5 or 6am. It’s often called a dream feed, and it can take a few nights to settle. It moves a feed. It doesn’t drop one.
Source: Nemours KidsHealth
Step 3: Spit-up
Dribbles out? Spit-up. Shoots out? Vomit.
Plenty. Most babies grow out of it by 12 months.
Tell spit-up from vomit by how it comes out, not how much. Spit-up flows or dribbles out, often with a burp, and doesn’t usually bother your baby. Vomit is forceful, and your baby may grimace, cry or look uncomfortable. Worried? Check with your pediatrician.
Sources: Mayo Clinic; AAP
Spit-up and reflux are the same thing. Vomiting is different.
Reflux is the medical name for milk coming back up from the stomach. Most babies grow out of it by their first birthday; Mayo says it’s unusual past 18 months. Vomiting is forceful. If your baby is vomiting, call your pediatrician.
Sources: AAP; NHS; Mayo Clinic
Yes. Five things help.
Only if your doctor recommends it.
Anti-reflux (staydown) formula, thickening powders and lactose-free formula are meant to be used under medical supervision, not picked off the shelf.
Source: NHS
Step 4: Switching formula
Gas, fuss, constipation? It’s usually not the formula.
Usually not.
Parents often suspect the formula, but Nemours says it usually isn’t the cause, and the AAP notes colic is only rarely caused by a sensitivity to milk protein. Talk to your pediatrician before you switch.
Source: Nemours KidsHealth
Same type, different brand? Generally fine. Alternate the new and the old at each feed for a while.
Switching to a different type, say from cow’s-milk-based to goat’s-milk-based? Check with your pediatrician first.
Step 5: Colic
No bottle prevents colic. Including ours.
Colic is a healthy baby crying 3 or more hours a day, 3 or more days a week.
It usually starts between 2 and 5 weeks and eases by 3 to 4 months, though it can last until about 6 months. Nobody knows exactly what causes it, and it isn’t tied to any bottle brand, whatever the marketing says. Crying this much can have other causes, so don’t assume it’s colic: ask your pediatrician or a feeding specialist to take a look.
Sources: Nemours KidsHealth; Mayo Clinic
Step 6: Growth and cleaning
One curve. One less chore.
Steady growth along a curve, not a particular number.
Your pediatrician tracks weight, length and head size on the WHO growth charts, the same charts whether your baby has formula, breast milk or both.
Sources: CDC; Nemours KidsHealth
If your baby is healthy and was born full term, yes.
From 2 months, the CDC says daily sanitizing may not be needed as long as you clean everything carefully after each use. Keep washing after every feed. Cleaning & care
Source: CDC
The short version.
Months 1–3 in 6 lines.
How much About 4–5 oz every 2–4 hours, and it generally stays there. No more than about 32 oz a day.
Nights Longer stretches come on their own. Most babies can stop being woken for night feeds once they’re back to birth weight and gaining steadily.
Spit-up Spit-up dribbles out; vomit is forceful. Plenty of spit-up is normal, and most babies grow out of it by 12 months.
Switching formula Gas, fuss or constipation usually isn’t the formula. Same type, different brand? Generally fine.
Colic No bottle prevents colic, including ours. Crying this much can have other causes: ask your pediatrician to take a look.
Growth and cleaning Watch for steady growth along a curve, not one number. Healthy and born full term? Over 2 months, you can stop sanitizing every day.