I'm on day 24 at 12:15 p.m. 4/17 successfully hatched chicks in a hovabator. 100° per manual and good humidity. One not so successful, yet. Noticed first pip yesterday morning at 7:00 a.m. day 23. Not much progress all day yesterday but a pencil eraser sized hole. This morning a nickel sized hole but again, not much progress since. Chick is breathing fine, but peeping a lot and loudly. Membrane around chick is tan and drying out. Other chicks hatched day 22. 12 eggs are unhatched and starting to stink. I've resisted the urge to help but not sure I'm doing the right thing. Chick is a polish if that makes any difference.