According to my chicken book
"You can store eggs for up to 6 days without noticing a significant difference. for each day thereafter, hatchability will suffer by approximately 1 percent. Store eggs out of sunlight in a cool, relatively dry place but not in the refrigerator. the best temperature is 55*F (33*C). Humidity should be low enough to prevent moisture from condensing on the shells, which would attract molds and also encourage any bacteria already on the shell to multiply" "to minimize evaporation of eggs stored longer than 6 days, seal cartons in plastic bags, or better yet, wrap the eggs individually in plastic wrap." "store eggs in clean cartons. Hard-plastic egg cartons can be easily disinfected for re-use; recycled styrofoam or cardboard cartons from the grocery store accumulate bacteria over time. When I use such cartons for hatching eggs, I discard them after one use." " Place eggs in the carton with their large ends up to keep the yolks centered within the white. if the eggs will be stored longer than 6 days, keep yolks from sticking to the inside of the shell by tilting the eggs from one side to the other. Instead of handling eggs individually, elevate one end of the carton one day, and the opposite end the next day."
I recommend you follow this as I stored 4 eggs for 4 days using this information and they are now properly developing in my incubator.