said the same thing to me, some preemie dont cath-up till the age of 5, i used to always compare my son to other preemies and even full terms babys but theres no comparing, i just learned to just enjoy my son each day and to help him in every possible way, today hes 14 months
and hes 32 inch
and 24.5 lbs, minding you he was born 1 lbs 7 oz
and 12 1/2 inch tall so its been a long road and its amazing what a year can do.
Good luck with your little one.