Optional: Hatching
Fertilized eggs can be hatched in an incubator. An 80% success rate can be expected from home eggs with a rooster, and eggs bought from the store will not be fertile.
Chicks may be just as health one way or the other, hatching is not necessary and it is typical to purchase recently hatched chicks throughout the spring.
Eggs and chicks can be purchased to ship online any time of year, but this is understandably risky and not recommended.
Eggs will hatch approximately 21 days after the start of incubation, no matter how long they were in a box. The same goes for allowing a broody hen to hatch her egg.