i cracked open a chicken egg at 23 days to see if i needed to throw the eggs out .. to my disapointment for killing a chick i found a live chick looked to be fully developed so ive decided to wait because i fingure if 1 was alive the other are too. but my question is the yolk of the egg was still attached and pretty good size so is that normal or is there still a few days left of growth this is my first time every doing this..i'm hearing chirping really good today on the 24th day of incubation....