How long can a chick breathe inside of the egg once they've punctured the airsack? I've got one that "pipped" awhile ago... There is a chunk of shell broken off... But it doesn't look like it has punctured the thicker membrane just inside the shell yet. It's definitely alive and kickin in there. If it hasn't punctured the membrane at some point is there a way to help it? How long would you wait? Just trying to be prepared in case cuz I don't one one of my precious babies to suffocate in there!