Hmm...I guess it's hard to tell since it wasn't there when he was born but it hasn't changed at all either? I would keep taking pictures every few days to see if you notice any change (fading or growing). Do you think it has been growing? Sometimes it is difficult to tell when you see it every day. If it is growing, it might be a hemangioma and I would try to get in to see a specialist since it is on his eyelid. Keep us posted and congratulations on the birth of your son!