Your baby would be expected to smile by about three months of age. At this time, she might also be cooing and making other sounds. If he was born at 34 weeks, he might smile at 7 weeks of age. By around two years of age, most otherwise normal preemies have caught up to full-term toddlers.
Herein, how long does it take for a premature baby to catch up?
Most premature babies will have caught up with their peers developmentally by the time they are two years old, but some may take longer, particularly babies born over two months' premature.
When should a premature baby start talking?
By 10 to 12 Months: By 12 months corrected age, preemies should be able to call a parent by saying "mama" or "dada." They should also be able to carry out simple requests (like waving). By 13 to 18 Months: By 18 months corrected age, preemies are really learning to talk.
What age do premature babies start crawling?
When you use an adjusted age, the range of normal gets shifted. For example, while most full-term babies will sit up between 4 and 7 months, a baby born two months early can be expected to do this between 6 and 9 months.