Found Robin Eggs in Dryer hose, how do i incubate it?

I found a robin building its nest inside of my dryer hose and i had to take it out. While i was taking it out i found one robin egg. I tried to put the nest in a bush nearby but now there is no sign of the mother bird or father bird. How can you tell if the egg is fertile and if it is how can i incubate it? I dont want the little thing to die.Please help me......i dont need to know what the law says about it....