The following guideline describes the various physical, cognitive, emotional, and social developmental changes and milestones to be expected during the first year of life.
It is of utmost importance to remember that the timeline is approximate, not absolute. Each child develops at his or her own pace, and some stages may occur earlier or later.

Differences between the timing in this guideline and your child may exist, but do not necessarily mean that there is a problem with your baby's development. Any concerns, however, should be discussed with your physician.

• Growth
  • 20g/day (1.5 lbs/month) weight gain
  • 2 cm/month length increase
• Movement and Activity
  • More deliberate movements
  • Limbs more extended
  • Can lift head temporarily when lying on stomach
  • Some delay in raising head when pulled to a sitting position from lying on back
  • Hands tightly fisted most of the time
• Sensory
  • Follows moving object with eyes

Social

• Smiles involuntarily
• Responds to sounds
• Communication
  • Throaty noises, gurgles