Oh Wendy, Wendy, Wendy..... were you not listening when the story of the birds and the bees was explained to you? To get fertilised eggs there needs to be a rooster present with the hens. When he DOES his thing the sperm swims up the oviduct and when it meets a 'ripe' egg the successful sperm is let in - pretty much like a mammal. The sperm and the eggs release hormones and become a zygote, divides a few thousand times, and then goes into suspension - in mammals they call this delayed inplantation. The egg is laid and when it eventually receives the right amount of warmth it restarts development and after 24 hours the warmth can not be stopped or the embryo dies.
Most of the eggs in the supermarket are from battery-hens so no rooster present - no fertile eggs.
Now, to make a Human baby you need a woman and a man who together need to ...............................................