MILK Doula & Nanny Co.MILKDoula & Nanny Co.
← The MILK Journal

When Do Babies Smile (and Laugh) for the First Time?

By Lavi Re' · November 4, 2026 · 8 min read

You're changing a diaper at the end of a long day, half thinking about whether you remembered to eat lunch, when your baby looks straight up at you and breaks into a wide, gummy grin. Suddenly every sleepless night feels a little lighter, and you find yourself calling your partner into the room to see if it will happen again.

That first real smile is one of the sweetest moments of early parenthood, and it's also one of the most searched. Parents want to know when it will happen, whether the smiles they're already seeing "count," when the giggles will start, and what it means if their baby seems a little more serious than the babies on their feed. Below, we walk through what the research and pediatric guidance say, how you can invite more smiles and laughter, and how to care for yourself so you have the energy to enjoy every one of them.

A happy newborn baby smiling up at a parent while lying on a white bed

When do babies smile for the first time?

Most babies give their first true social smile somewhere around 6 to 8 weeks of age, and by 2 months many babies smile back when you talk to them or smile at them. The Centers for Disease Control and Prevention (CDC) lists "smiles when you talk to or smile at" them as one of the social and emotional milestones for 2 months, and it describes its milestones as things that most children, 75% or more, can do by that age. That means a perfectly healthy baby may smile a little earlier or a little later, and there's a wide, normal range.

Many parents notice smiles even sooner, sometimes in the very first days. These early smiles are real in the sense that your baby's face is truly making the expression, but they're usually reflexes rather than a response to you. Your baby may have even practiced this expression in the womb. Somewhere in the second month, as your baby's brain and vision develop and they spend more time awake and alert, those fleeting reflex smiles slowly give way to smiles that are clearly meant for the people they love.

If your baby was born early, it helps to think in terms of corrected age. The American Academy of Pediatrics (AAP) explains that you subtract the number of weeks your baby arrived early from their age since birth, and that using this corrected age gives a better idea of when to expect common milestones during the first two years. So a baby born four weeks early might give that first social smile closer to 10 or 12 weeks after birth, which is right on time for them.

Is my baby's smile real or just gas?

The most reliable clue is context. A reflex smile tends to be brief and random, it often happens while your baby is drowsy, asleep or in the middle of a feed, and it can't be repeated on purpose. A social smile happens when your baby is awake and alert, looking at your face, and it usually reaches the eyes, so the whole face seems to light up. You can often bring a social smile back by repeating what caused it, such as making the same silly face or saying the same phrase in a sing-song voice.

As for gas, there isn't strong evidence that gas itself causes smiling, even though it's a favorite family joke. What is true is that newborns make all kinds of fleeting facial expressions during light, active sleep, and those sleepy smiles are completely normal. If you've been following along with our guide to newborn sleep by week, you'll recognize that newborns spend a lot of time in this lighter, active sleep, which is why so many parents catch a smile at 3 a.m. and wonder what it meant.

Either way, enjoy them. Reflex smiles are a sign of a healthy, developing nervous system, and they're a sweet preview of what's coming.

When do babies laugh for the first time?

Most babies begin with little chuckles around 3 to 4 months and move into full belly laughs closer to 4 to 6 months. The CDC's 4-month milestones include a baby who "chuckles (not yet a full laugh) when you try to make" them laugh and who smiles on their own to get your attention, and by 6 months its milestone list simply says "laughs." Some babies are early gigglers and some take their time, and both are normal.

Before the first laugh, you'll likely hear a lot of cooing, sighing and happy squeals, which is your baby warming up their voice. Around this same window, babies start to understand that their sounds and expressions get a reaction from you, so the back-and-forth becomes a real game. Many parents find that the first laugh arrives during something completely ordinary, like a diaper change, a funny noise from an older sibling, or a gentle tickle under the chin.

A laughing baby lying on a blanket during a diaper change with a parent's hands nearby

How can I get my baby to smile and laugh more?

The simplest answer is face-to-face time when your baby is calm, fed and alert. Babies see faces most clearly when they're close, roughly the distance from your arms to your chest, so holding your baby in that space and talking, singing or making exaggerated expressions gives them something wonderful to study. When your baby smiles or coos, respond with a smile and a happy voice, because that response is exactly how they learn that connection feels good.

A few gentle ideas parents often enjoy include:

  • Copying your baby. When your baby makes a sound or a face, make it back, then pause so they have a turn to answer you.
  • Narrating your day. Talking through a diaper change or bath in a warm, sing-song voice keeps your baby engaged, even when you feel a little silly.
  • Playing peekaboo and making funny noises. These are classic for a reason, and they tend to work especially well as your baby approaches 4 to 6 months.
  • Following their cues. If your baby turns away, fusses or yawns, they may be overstimulated or tired, so it's a good moment to slow down, snuggle and let them rest.

There's no need to perform all day long. Short, happy moments woven into feeding, changing and cuddling are plenty, and your baby is learning from every one of them.

Should I worry if my baby isn't smiling at 2 months?

Usually not, but it's always worth mentioning to your pediatrician. Because the CDC milestones describe what 75% or more of babies are doing by a certain age, some healthy babies simply arrive at that first social smile a few weeks later, especially if they were born early or have had a rough start with feeding or reflux. The 2-month well visit is a natural time to bring it up, since your pediatrician will be asking about milestones anyway.

It's a good idea to call sooner, or to make sure your pediatrician hears about it, if your baby doesn't seem to look at your face, doesn't react to loud sounds, or still isn't smiling at you by around 3 months. Trust your instincts here. You know your baby better than anyone, and asking a question is never an overreaction. If anything needs a closer look, early support makes a real difference, and in many cases your pediatrician will simply reassure you and check in again at the next visit.

Is it normal not to feel happy after having a baby?

Yes, it's very common, and you aren't doing anything wrong. Many mothers expect that first smile to wash away every hard feeling, and when they feel tired, flat, weepy or anxious instead, they quietly worry that something is wrong with them. Hormone shifts, interrupted sleep and the huge change of becoming a parent can make joy feel just out of reach for a while, and the baby blues in the first couple of weeks are something many new mothers experience.

Caring for yourself is part of caring for your baby. Try to protect at least one longer stretch of sleep each day, keep water and a real snack within reach while you feed, step outside for a few minutes of daylight and fresh air when you can, and let the people who love you take something off your plate. Our article on why community support improves health outcomes explains why leaning on others matters so much in these weeks, and our guide to what a doula is and how birth and postpartum doulas help walks through what that support can look like at home. A postpartum doula can help with feeding, newborn care, light meals and simply giving you room to breathe, and overnight newborn care lets you sleep while someone you trust cares for your baby.

For mothers who want to step fully into rest, The Retreat at MILK Maternity in Spring, Texas, is a postnatal healing estate where our 24/7 doula care means your doula can keep the baby so you can truly sleep. You wake to balanced meals prepared for your recovery, a tea bar and herbal baths, gentle walks around the property, and a complimentary session with our mental health therapist. Many mothers find that when they're rested and nourished, those first smiles feel even sweeter. You can learn more at The Retreat at MILK Maternity.

If the heaviness lasts longer than two weeks, makes it hard to care for yourself or your baby, or brings thoughts of harming yourself, please reach out right away. You can call or text the Postpartum Support International HelpLine at 1-800-944-4773, and if you're in crisis, call or text 988 to reach the Suicide and Crisis Lifeline. Your provider wants to hear from you too, and help is available.

A smile worth waiting for

Whether your baby's first social smile comes at 6 weeks or closer to 3 months, it's a sign that they're learning who you are and that your face is their favorite place to look. Keep talking, singing and smiling back, take care of yourself along the way, and know that the giggles are coming soon. And if the nights are feeling long right now, our tips for adjusting your baby's sleep after daylight saving time ends may help this week.

A smiling baby in a soft pink sweater looking toward the camera

If you'd like support at home so you can rest and enjoy these early milestones, we'd love to help. Contact MILK at milkdoulaco.com/contact or text Lavi at (713) 384-6381. We serve families in Houston, Austin and Dallas.

Sources

Care, in person

Reading is a lovely start. Having someone in your corner is better.

Keep reading

Newborn Sleep by Week: What Is Normal in the First 12 Weeks?

How much should a newborn sleep, and when do longer nights begin? Here is what baby sleep looks like week by week, plus how to protect your own rest.

How Do I Adjust My Baby's Sleep After Daylight Saving Time Ends?

Daylight saving time ended on Sunday, and if your little one is suddenly waking an hour early, you're in good company. Here's how to gently shift your baby's sleep, naps and feeds over the next week, and how to protect your own rest while you do it.