Infant: Ages 1-12 months | Raleigh Pediatrics (2024)

The first year of your baby’s life is full of so many changes in both growth and development. It is exciting to watch them go from being totally dependent to developing their own personalities and interests.

1-3 Months

The first three months with your baby often seem the hardest. Sleep-deprived parents can feel overwhelmed, but that is normal and you will quickly learn how to read your baby’s cues and personality. Don’t worry about “spoiling” your baby at this stage. The more responsive you are, the more secure your baby will feel. Your baby will gain strength to lift his/her head and first smiles will come soon. Your baby will begin to follow moving objects and recognize familiar people.

By two months, your baby will be sleeping longer during the night than the day and feedings during the night should start decreasing. By the end of the third month, most babies have developed a daily routine for feeding, sleeping, and playing. Begin to read to your baby regularly as part of your routine. Reading aloud to infants and toddlers has been shown to be the single most important activity in them learning to read and have strong language skills.

4-7 Months

Babies in this stage enjoy tummy time and begin rolling over. This leads to sitting with and then without support. They become more and more coordinated as the learn to transfer objects from hand to hand, bounce on their feet and explore with their hands and mouth. They enjoy social play and will love to babble and interact with you. Most babies sleep through the night at this point and may sleep a little less during the day as they enjoy interacting with their environment more. Solid foods are often introduced during this time frame (see link below).

8-12 Months

It is time to start “baby-proofing” your home. Many babies in this stage crawl, pull to stand and some even start to walk, so a safe environment is very important as they explore. Babbling turns into first words. They like to mimic behavior and will start learning to feed themselves. Separation/Stranger anxiety sets in, but this is a sign of a normal healthy attachment to you. Calm reassurance from you is the best response.

Discipline at this stage should be consistent and limited to things that are truly dangerous for the baby. Luckily they have very short attention spans, so often redirection to a different activity or location is all that is needed.

By the time your baby reaches 1 year, you will be amazed at how quickly they have grown and changed. Hang on because here comes toddlerhood!

Office Visits

It is important for your baby to be seen by a physician and receive immunizations often the first year of life. We will see you and your baby at 1, 2, 4, 6, 9 and 12 months for a well visit that will include a physical exam, screenings and time to discuss your baby’s development.

Immunizations

Poison Control Phone Number: 1-800-222-1222

Infant: Ages 1-12 months | Raleigh Pediatrics (2024)

FAQs

What are the baby stages from 0 to 12 months? ›

Your Child's Development -- Month by Month
Gross Motor
4 monthsPushes up on arms when lying on tummy
5 monthsBegins to roll over in one or the other direction
6 monthsRolls over both ways
7 monthsMoves around --is starting to crawl, scoot, or “army crawl”
8 more rows
Feb 27, 2024

How to count a baby's age? ›

In general, a baby's sweet little age is counted in months until they turn at least 2 years old. And then we think, oh, time flies. If you are counting your baby's age in months, then all you need to do is multiply the months by 4.345 because there are approximately 4.345 weeks in one month.

What is the age range of infants? ›

Infants (0-1 years) | CDC.

What to expect at a baby's 12 month check-up? ›

You Can Expect Your Baby's Doctor to:

Check your baby's weight, length, and head circumference. Perform a physical exam of your baby. Possibly give your baby vaccines for measles, mumps, rubella, chickenpox, or another (booster) shot of a vaccine your baby has already had. Recommend a flu shot if it's fall or winter.

What are three major milestones that a baby should meet by 12 months of age? ›

Most babies this age can sit without help and pull themselves to a standing position. Creeping, crawling and walking while holding onto furniture will eventually lead to walking without support. By 12 months, many babies might take their first steps without support. Better hand-eye coordination.

What stage is the hardest with a baby? ›

1-3 Months

The first three months with your baby often seem the hardest. Sleep-deprived parents can feel overwhelmed, but that is normal and you will quickly learn how to read your baby's cues and personality. Don't worry about “spoiling” your baby at this stage.

How old is 18 months? ›

Your Child's Development: 1.5 Years (18 Months)

Is 8 weeks 2 months? ›

8 weeks pregnant is how many months? You're two months pregnant at 8 weeks, although doctors generally refer to pregnancy by week instead of month.

Is 16 weeks a 4 months old baby? ›

16-week-old infant development

At the same time, you will also be watching to see if the baby's eyes are following the object, and if the baby's hand is reaching for it. Your baby is four months old now. You may begin to notice a lot of changes in your baby's personality, and he may peek at you more.

Is a 10 year old an infant? ›

Some age-related development periods with defined intervals include: newborn (ages 0 – 2 months); infant (ages 3 – 11 months); toddler (ages 1 – 2 years); preschooler (ages 3 – 4 years); school-aged child (ages 5 – 12 years); teens (ages 13 – 19 years).

Is a 12 month old an infant? ›

What are development milestones in toddlers? By the time children reach 12 months of age, they are considered to be 'toddlers'. While toddlers can vary in their size shape and personality, there is a well-defined time frame over which most toddlers will reach their developmental milestones.

What age is a teen? ›

Teenagers (13-17 years) During adolescence, teenagers are learning to define who they are and to develop their own values, priorities and goals. Teenagers are also gaining a sense of belonging to a community and to the world around them.

What is pediatric check up? ›

At this exam, the health care provider will check the child's growth and development in order to find or prevent problems. The provider will record your child's height, weight, and other important information. Hearing, vision, and other screening tests will be part of some visits. So will immunizations.

How often do infants go to the doctor? ›

The American Academy of Pediatrics (AAP) recommends babies get checkups at birth, three to five days after birth (or sooner if your provider has concerns about baby's health), and then at 1 month, 2 months, 4 months, 6 months, 9 months, 12 months, 15 months, 18 months, 24 months, 30 months and 36 months.

What are red flags in child development? ›

Months Is not gazing at objects; does not tune out repetitive sounds; does not move eyes to follow sound Does not respond to loud sounds Does not coo or make sounds When lying on back: keeps hands fisted and lacks arm movements; is not bringing hands to mouth; lacks symmetrical arm movements; does not turn head to ...

What are the stages of the baby in order? ›

The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.

What are the stages of baby development in order? ›

A baby goes through several stages of development, beginning as a fertilized egg. The egg develops into a blastocyst, an embryo, then a fetus.

What are the order of baby milestones? ›

Important Baby Milestones
  • 2 Months: Latches and breastfeeds easily and comfortably (on both sides) ...
  • 4 Months: Holds their head and neck steady without support. ...
  • 6 Months: Rolls both ways. ...
  • 9 Months: Rolls in every direction. ...
  • 1 Year: Gets to a sitting position on their own. ...
  • 18 Months: Walks independently. ...
  • 2 Years: Begins to run.
Apr 23, 2024

How long do babies stay in 0 to 3 months? ›

The most important thing to note with respect to sizes is that they represent an average range, and the size listed will be the upper limit of that range. So, if you have a 3-month-old, they will likely be ready to graduate from 0-3 month sizes into 3-6 month sizes if they haven't already.

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