My grandson was 2lbs 2 oz he was 26 weeks 4 days we had ups and downs. some major surgery at 2 days old but I'm proud to say we will be celebrating his 18th birthday very soon. with all the new medical tech they have now compared to them your grandson has a lot more medical help good luck and think happy thoughts. just remember there will always be ups and downs but focus on the ups it makes it so much easier. dora