7 weeks for first shed!?!?

All of my hatchlings shed anywhere from 7-10 days out of the egg, except for one. She hatched on 6/16 and just had her first shed today. She was a little slow out of the egg, left behind a good portion of her yolk, and week after week she was just getting thin and thinner. Just decided to assist feed her last week, which she took no problem, and then today just had her first shed. I haven't hatched out a ton of babies, but that just seemed like an incredibly long time to me.