So on the 17th of march i gave my aunties broody hen 4 of my fertilised eggs just to see what would happen ......... Yesterday one of the chicks hatched but nothing since i have really gently shook the egg and it feels like something is in alll of the others and when i shine a light on it you can see the air sac inside the egg. I was wondering how long should it take before they hatch( if they will) and do you think there is much chance of them hatching.... Hope you hen experts will give me some answers as this is my first time doing it