Baby, week by week
From the first week home to their second birthday: what's happening, what's ahead, and one memory worth keeping.
0–1 month
Week 1Welcome to your first week together. 💛 Your baby is adjusting to light, sound, touch, feeding, and life outsiWeek 2Your baby is becoming more familiar with life outside the womb. Familiar voices, snuggles, and routines may alWeek 3Your baby is continuing to grow and adapt to the world around them. You may begin noticing favorite soothing tWeek 4A whole month of cuddles, late-night feeds, first experiences, and growing together. Your baby may be becoming
1–3 months
Week 5Your baby may spend a little more time quietly alert, study nearby faces and turn toward familiar voices. HeadWeek 6Your baby may be spending more time awake and observing the world around them. Faces, voices, songs, and familWeek 7Your baby is becoming more aware of people, sounds, and surroundings. Daily routines may be feeling a little mWeek 8Head control is still developing, so every hold and play position needs full support. Your baby may be smilingWeek 9Your baby may smile socially, make new sounds and follow a face or high-contrast object for a short distance. Week 10Your baby is becoming stronger and more engaged with the world around them. Playtime, movement and interactionWeek 11Your baby may smile socially, make new sounds, and follow a face or high-contrast object for a short distance.Week 12Three months ago, your baby was brand new to the world. Today, they're beginning to show preferences, recognizWeek 13Your baby's hands may suddenly become their favorite toy. They might watch them, bring them together, mouth th
3–6 months
Week 14Your baby is becoming more active and intentional with their movements. You may notice them reaching toward toWeek 15Your baby is becoming more aware of sights, sounds, and movement around them. You may notice them turning towaWeek 16Four months already! 💛 Your baby is becoming more interactive and intentional with their movements. They may Week 17Your baby may be reaching for toys, laughing, squealing, and spending longer periods exploring the world arounWeek 18Your baby is becoming increasingly interested in sharing experiences with you. You may notice them looking wheWeek 19Your baby is becoming a more active explorer. They may reach for everything within sight, examine objects closWeek 20Five months together! 💛 Your baby is growing stronger, more curious, and more determined to explore the worldWeek 21Your baby may be making more sounds, experimenting with different pitches, and "talking" throughout the day. TWeek 22Your baby is becoming more interested in social interaction and may smile, squeal, or babble to get your attenWeek 23Your baby is beginning to understand that their actions create results. They may repeatedly kick, swipe, shakeWeek 24Six months together! Your baby may use both hands to explore, turn toward sounds and show strong curiosity aboWeek 25Your baby may use both hands to explore, turn toward sounds, and show growing curiosity about everything you'rWeek 26Six months is almost here! 💛 Your baby may spend more time sitting with support, reaching for nearby toys, an
6–9 months
Week 27Your baby is becoming more curious about the world beyond home. Trips to the store, family visits, walks, and Week 28Your baby may sit with support or briefly alone, pass objects between hands and explore safe items with the moWeek 29Dropping, banging, shaking and searching are experiments. Your baby is learning that actions create results anWeek 30Dropping, banging, shaking and searching are experiments. Your baby is learning that actions create results anWeek 31Dropping, banging, shaking and searching are experiments. Your baby is learning that actions create results anWeek 32Dropping, banging, shaking and searching are experiments. Your baby is learning that actions create results anWeek 33Your baby may pivot, scoot, crawl or use another movement style. Some babies focus on sitting or fine-motor skWeek 34Your baby may pivot, scoot, crawl or use another movement style. Some babies focus on sitting or fine-motor skWeek 35Your baby may pivot, scoot, crawl or use another movement style. Some babies focus on sitting or fine-motor skWeek 36Your baby may pivot, scoot, crawl or use another movement style. Some babies focus on sitting or fine-motor skWeek 37Gestures, babble, facial expressions and reaching help your baby communicate before clear words arrive. They mWeek 38Gestures, babble, facial expressions and reaching help your baby communicate before clear words arrive. They mWeek 39Gestures, babble, facial expressions and reaching help your baby communicate before clear words arrive. They m
9–12 months
Week 40Gestures, babble, facial expressions and reaching help your baby communicate before clear words arrive. They mWeek 41Your baby may experiment with containers, hidden objects and different ways to reach a goal. Cruising or pulliWeek 42Your baby may experiment with containers, hidden objects and different ways to reach a goal. Cruising or pulliWeek 43Your baby may experiment with containers, hidden objects and different ways to reach a goal. Cruising or pulliWeek 44Your baby may experiment with containers, hidden objects and different ways to reach a goal. Cruising or pulliWeek 45Your baby may understand familiar routines, use gestures and enjoy repeating games. First words or steps may aWeek 46Your baby may understand familiar routines, use gestures and enjoy repeating games. First words or steps may aWeek 47Your baby may understand familiar routines, use gestures and enjoy repeating games. First words or steps may aWeek 48Your baby may understand familiar routines, use gestures and enjoy repeating games. First words or steps may aWeek 49Your one-year-old may point, wave, imitate, place objects in containers and move with growing confidence. TheiWeek 50Your one-year-old may point, wave, imitate, place objects in containers and move with growing confidence. TheiWeek 51Your one-year-old may point, wave, imitate, place objects in containers and move with growing confidence. TheiWeek 52Your one-year-old may point, wave, imitate, place objects in containers and move with growing confidence. Thei
12–15 months
Week 53Your young toddler may want to copy everyday actions and participate in simple routines. Repetition helps themWeek 54Your young toddler may want to copy everyday actions and participate in simple routines. Repetition helps themWeek 55Your young toddler may want to copy everyday actions and participate in simple routines. Repetition helps themWeek 56Your young toddler may want to copy everyday actions and participate in simple routines. Repetition helps themWeek 57Movement practice may dominate the day. Your toddler might walk, cruise, crawl quickly or combine several straWeek 58Movement practice may dominate the day. Your toddler might walk, cruise, crawl quickly or combine several straWeek 59Movement practice may dominate the day. Your toddler might walk, cruise, crawl quickly or combine several straWeek 60Movement practice may dominate the day. Your toddler might walk, cruise, crawl quickly or combine several straWeek 61Your toddler may use pointing, sounds, signs or a few words to share wants and interests. They often understanWeek 62Your toddler may use pointing, sounds, signs or a few words to share wants and interests. They often understanWeek 63Your toddler may use pointing, sounds, signs or a few words to share wants and interests. They often understanWeek 64Your toddler may use pointing, sounds, signs or a few words to share wants and interests. They often understanWeek 65Putting in, taking out, stacking, scribbling and turning pages build coordination. Your toddler may repeat the
15–18 months
Week 66Putting in, taking out, stacking, scribbling and turning pages build coordination. Your toddler may repeat theWeek 67Putting in, taking out, stacking, scribbling and turning pages build coordination. Your toddler may repeat theWeek 68Putting in, taking out, stacking, scribbling and turning pages build coordination. Your toddler may repeat theWeek 69A block can become a phone and a spoon can feed a stuffed animal. Early pretend play shows your toddler connecWeek 70A block can become a phone and a spoon can feed a stuffed animal. Early pretend play shows your toddler connecWeek 71A block can become a phone and a spoon can feed a stuffed animal. Early pretend play shows your toddler connecWeek 72A block can become a phone and a spoon can feed a stuffed animal. Early pretend play shows your toddler connecWeek 73Your toddler may insist on helping, choosing and trying tasks alone. Strong feelings often outpace available wWeek 74Your toddler may insist on helping, choosing and trying tasks alone. Strong feelings often outpace available wWeek 75Your toddler may insist on helping, choosing and trying tasks alone. Strong feelings often outpace available wWeek 76Your toddler may insist on helping, choosing and trying tasks alone. Strong feelings often outpace available wWeek 77Your toddler may combine movement, gestures, sounds and words to communicate. Running, climbing and pushing obWeek 78Your toddler may combine movement, gestures, sounds and words to communicate. Running, climbing and pushing ob
18–21 months
Week 79Your toddler may combine movement, gestures, sounds and words to communicate. Running, climbing and pushing obWeek 80Your toddler may combine movement, gestures, sounds and words to communicate. Running, climbing and pushing obWeek 81Your toddler may notice categories, matches and differences. They may group objects in ways that make sense toWeek 82Your toddler may notice categories, matches and differences. They may group objects in ways that make sense toWeek 83Your toddler may notice categories, matches and differences. They may group objects in ways that make sense toWeek 84Your toddler may notice categories, matches and differences. They may group objects in ways that make sense toWeek 85Trial and error is central now. Your toddler may persist, ask for help, become frustrated and try again—all wiWeek 86Trial and error is central now. Your toddler may persist, ask for help, become frustrated and try again—all wiWeek 87Trial and error is central now. Your toddler may persist, ask for help, become frustrated and try again—all wiWeek 88Trial and error is central now. Your toddler may persist, ask for help, become frustrated and try again—all wiWeek 89Your toddler may watch other children closely and play beside them more than with them. Sharing and waiting arWeek 90Your toddler may watch other children closely and play beside them more than with them. Sharing and waiting arWeek 91Your toddler may watch other children closely and play beside them more than with them. Sharing and waiting ar
21–24 months
Week 92Your toddler may watch other children closely and play beside them more than with them. Sharing and waiting arWeek 93Pretend play may include familiar sequences such as feeding, washing or putting a toy to bed. Language can makWeek 94Pretend play may include familiar sequences such as feeding, washing or putting a toy to bed. Language can makWeek 95Pretend play may include familiar sequences such as feeding, washing or putting a toy to bed. Language can makWeek 96Pretend play may include familiar sequences such as feeding, washing or putting a toy to bed. Language can makWeek 97Your toddler may run, kick, scribble, solve simple problems and use a growing mix of words and gestures. SkillWeek 98Your toddler may run, kick, scribble, solve simple problems and use a growing mix of words and gestures. SkillWeek 99Your toddler may run, kick, scribble, solve simple problems and use a growing mix of words and gestures. SkillWeek 100Your toddler may run, kick, scribble, solve simple problems and use a growing mix of words and gestures. SkillWeek 101At two, many children combine words, notice others' feelings, use objects in pretend play and move with greateWeek 102At two, many children combine words, notice others' feelings, use objects in pretend play and move with greateWeek 103At two, many children combine words, notice others' feelings, use objects in pretend play and move with greateWeek 104At two, many children combine words, notice others' feelings, use objects in pretend play and move with greate
General, educational information, not medical advice. If something worries you, check with your provider or pediatrician.
Meet our founder
Brittany Ryan
Founder and Mom of Two
Brittany is a mom of two with a background in early childhood development. Little by Little Together began with a beautiful, blank baby book. Like so many parents, she bought baby books with every intention of filling them; instead, they sat in a closet while life kept moving. So she built a personal assistant for parenthood that tells you what matters right now, offers one simple idea at a time, and keeps your story safe.
“You don’t have to remember everything at once. Little by little, there is a story worth keeping.”