Yes, your baby was probably in shed. I know it's hard to see with a ghost. I have an anery and he's really hard to tell sometimes. I also have a snow...snakes that are light colored and have red eyes are VERY hard to see when they go to shed. I have to look at her eyes very closely and you can see them cloud up but never go blue. As for how often they shed, they should shed every 4-6 weeks depending on how fast they are growing. My snow's last shed was only 4 weeks from the shed before that while my bloodred usually sheds every 6 weeks or so. It really just depends on the growth rate of the snake.