My chick zipped about 90 minutes-2 hours ago. He keeps trying to get out of the bottom of his shell but it's like the butt/tail is stuck. Head, upper body and both feet are out. I hatched in egg cartons so the bottom of shell is positioned vertically. I did have a technical error during my hatch so that the eggs weren't turned at all for possibly up to 11 days so I am a little concerned that it is really stuck to it's shell. One got out fine and I have another one pipping. The stuck one is cheeping up a storm and seems pretty vigorous. I didn't have any humidity issues and my current humidity is like 75%. Do I help or do I wait? Can it die if I wait until the hatch is complete before I try to help him out?