ALL of my eggs have loose air sacks (NOOOOO!). I am using the broody as I don't have an incubater. Do you have to have an incubater to settle an egg? Can you just leave it at room temperature for 24 hours? Can an egg be too old or young to settle? If so, what is the earliest and latest you can do it? I only have 3 eggs so If there is a bigger than small risk of damaging and/or killing the embryo I don't want to do it.