EN
try amma today
He’s learned so much!
Pregnancy

He’s learned so much!

1 min readWeek 13
Key takeaways
1 min
  • Expect your 3-month-old to kick legs while lying on back, open their palms, and put hands in their mouth as key physical milestones.
  • Watch for social development signs like smiling, grimacing, and recognizing mama's face and voice.
  • Schedule a pediatric visit to assess skull shape, muscle tone, and joint development for proper growth tracking.
  • Practice grabbing exercises with toys to support your baby's developing motor skills and hand-eye coordination.
  • Monitor for positional skull deformities that may develop from consistent sleeping positions.

At 3 months, babies reach important milestones including kicking legs, opening palms, grabbing toys, smiling, and recognizing mama. They can put hands in mouth and show facial expressions, marking significant social and physical development progress.

amma app

Track your pregnancy in the app

Personalized content for your pregnancy week

Download App

He’s learned so much!

Three months is a significant stage in development. By this time, babies are able to [1]:

  • lie on their back and kick their legs
  • open their palms (newborns always have their fists clenched)
  • put their hands in their mouth
  • grab a toy
  • smile and grimace
  • to recognize mama

It's time for another pediatric visit. At this appointment, the doctor may assess the condition of his skull due to the fact that most babies always sleep in the same position and positional deformity may develop [2]. The doctor will also check the muscle tone, the condition of the joints, and give recommendations for exercises to help development.


  1. Baby. American Academy of Pediatrics, 2021.

  2. Prevention and Management of Positional Skull Deformities in Infants. James Laughlin, Thomas G. Luerssen, et al. Pediatrics, 2011.

Frequently asked questions

By 3 months, babies typically kick their legs, open their palms, grab toys, smile, and recognize their mother. They can also put their hands in their mouth and show facial expressions like grimacing.

Schedule your baby's 3-month checkup around 12-16 weeks of age. The doctor will assess skull shape, muscle tone, joints, and provide developmental exercise recommendations.

Popular baby names for 2026 include classic choices like Emma, Olivia, Liam, and Noah, alongside trending names inspired by nature, culture, and unique spellings. Consider names that match your family's heritage and values.

Vary your baby's head position during sleep and supervised tummy time. Alternate which end of the crib they sleep at and ensure plenty of supervised awake time on their stomach.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

Meet our medical experts

Medically reviewed content

Reviewed by healthcare professionals · Updated September 4, 2024

This article is based on peer-reviewed research and trusted medical sources.

  1. Prevention and Management of Positional Skull Deformities in Infants. James Laughlin, Thomas G. Luer

Track your pregnancy on the go

Rated 4.8417,594 reviews