Your toddler repeating words over and over is a perfectly normal developmental milestone. (thetoddle.com)
Charts of normal developmental milestones don't seem useful because a preemie's development lags behind that of full - term babies. (verywellfamily.com)
If your preemie is now a healthy baby who had a smooth NICU course and no serious long - term effects of prematurity, he should learn to sit up according to normal developmental milestones for his corrected age: (verywellfamily.com)