My baby is not crawling and not even getting into sitting position from lying down on her own but she do get into sitting position when I turn her into right side when lying down..she can roll over and sit up on her own.she is 9 month and 16 days old today.i consulted doctor about she isn't crawling and not even getting into sitting position. he gave a calcium suspension and asked to give it till 11 month of age. still I'm so very tensed. please help me is it all normal or something..?