3-month milestones: hands, coos & head control

Head control

Around this age, head control is still developing. During tummy time, many babies can lift the head and hold it up for a short period, often pushing up on the forearms. When you hold your baby upright against your shoulder, the head may be steadier than it was in the newborn weeks, though it can still bob or need support.

Keep supporting the head and neck whenever you pick up, carry, or set down your baby. Strength builds with practice, so short, frequent tummy time sessions while your baby is awake and you are watching can help.

Hands and reaching

At 3 months, hands often start to open up rather than staying in tight fists. Many babies bring their hands to the middle of the body and to the mouth, and some begin to swipe at or grab a dangling toy. Hand-eye coordination is just getting started, so reaching is not always accurate yet.

• Opens hands more of the time instead of clenching
• Brings hands together and to the mouth
• May hold a toy briefly when you place it in the hand
• Watches faces and follows a moving object with the eyes

Coos and early sounds

Many babies make cooing and gurgling sounds at this age and may quiet down or turn toward a familiar voice. Some take turns in a back-and-forth way, making a sound after you speak and then waiting for your reply. Smiling at people is common too.

Talking, singing, and responding to your baby's sounds supports this early communication. You do not need special toys. Naming what you see and pausing for your baby to answer is enough.

Remember that babies vary

Milestones describe what most babies can do by a certain age, not a hard deadline. A range of timing is normal, and babies born early may reach milestones later when measured by birth date. Growth in weight, length, and head size also follows broad ranges rather than a single right number.

Bring up any concerns at your regular checkups. Acting early is helpful, and your pediatrician can look at the whole picture, including how your baby moves, sees, hears, and connects with you.

Quick answers

My 3-month-old cannot hold their head up fully. Should I worry?

Head control is still developing at this age, so some bobbing or wobble is common, especially when your baby is upright. Many babies hold the head up well during tummy time but still need support at other times. Short, frequent tummy time while your baby is awake can help build strength. If your baby seems very floppy, very stiff, or is not making progress, mention it to your pediatrician.

How much tummy time does a 3-month-old need?

There is no single required amount. Aim for several short sessions across the day while your baby is awake and you are watching, and stop if your baby gets fussy or tired. You can build up time gradually as your baby gets stronger. Always put your baby on the back to sleep, and keep tummy time only for supervised, awake play.

What if my baby is not cooing or smiling yet at 3 months?

Some babies coo and smile a little later than others, and timing varies. Keep talking, singing, and responding to your baby's sounds and expressions to encourage back-and-forth communication. If your baby is not making sounds, not smiling at people, or does not seem to react to your voice, share that with your pediatrician so it can be checked.

Sources & further reading

1. CDC — Developmental Milestones (Learn the Signs. Act Early.)
2. WHO — Child Growth Standards

This article was written against current AAP, CDC, and WHO guidance and is for educational purposes only. It does not constitute medical advice. ParentFlow is a wellness companion — not a substitute for your pediatrician. For medical concerns, always consult a qualified healthcare provider.