Turn the eggs to a new position once daily until placing in the incubator. Hatchability holds well up to seven days, but declines rapidly after that. Try not to store eggs more than 7 days before incubating. A 14 day storage reduces hatch to near 50% and after 3 weeks of storage, hatchability drops to almost zero.his would depend on the breed of chicken you own, but roughly, the chickens will be at least 4 months old before you see the first eggs being laid. There are some breeds that … will not produce eggs until they are over six months old and even then, they may only lay one or two eggs per week.