Doctors use certain milestones to tell if a baby is developing as expected. There's a wide range of what's considered normal, so some babies gain skills earlier or later than others. Babies who were born prematurely may reach milestones later. Always talk with your doctor about your baby's progress.
Here are things babies usually do by this age:
Communication and Language Skills
make sounds other than crying
react to loud noises
Movement and Physical Development
when on their belly, hold up their head
move both arms and both legs
open their hands briefly
Social and Emotional Development
calm down when spoken to or picked up
look at your face
seem happy to see you
smile when you talk or smile
Cognitive Skills (Thinking and Learning)
watch you as you move
look at a toy for several seconds
When Should I Call the Doctor?
You know your baby best. Share your concerns — even little ones — with your baby's doctor.
If your baby is not meeting one or more milestones or you notice that your baby had skills but has lost them, tell the doctor.