Prayers and thoughts for your family and son.
They perform miracles in the NICU.
My twin Grandsons were born 3 months early, 1.9 lbs and 2.1 lbs and spent 3 months in the NICU.
They were only given a 1 in 2500 chance that both would make it.
They are 2 now, weight #30, strong as oxes and you can't hold them down.
Hang in there and let us know when he comes home.