If your child is still in the NICU at this time her developmental progress will definitely be affected by her health status. It is important to work with qualified therapists to help maintain and hopefully improve your child's mobility. However, do not neglect play and learning through play.
Children learn best through play.
A child's need for play is not different because she has CP, though she may need help in getting this need met adequately. Encourage your child's therapists to help you figure out ways to support your child in expanding her ability to play. When someone physically needs help to do many things it is hard to be independent. Whenever possible let your child choose between two acceptable choices. You want to find ways to encourage your child's autonomy.