We took a monthly photo of Rio so now that the boys are home we are going to do the same with them. Although the boys are 6 months chronologically, they are only 3 months corrected, so I have included Rio's three month photo for comparison.
Rio - 3 months; 13.5 pounds
Asher - 6 months/3 months corrected; almost 12 pounds
Nolan - 6 months/3 months corrected; almost 14 pounds
As far as their size, you can see they are very close to Rio at 3 months. If we look at the growth curve for 3 month old boys, Asher is in the 25th percentile and Nolan is in the 50th. But if we look at the growth curve for micro premies at 3 months corrected, Asher is in the 50th percentile and Nolan is in the 95th. So they are doing great!