I've heard that when storing eggs to incubate it's best to keep them at room temp, in a carton angled 45 degrees. Write AM & PM on either end of the carton, and twice a day rotate the end that's raised up.
I think you'll get better results with fresher eggs, but some will stay viable for over a week. And I too have gotten refrigerated eggs to hatch. A few times I was setting a broody hen and remembered a particular hen's egg from which I wanted to get a chick. I would let the refrigerated egg warm to room temp & place it under the hen. They had only been in the frige a few days, but it was fun to think "there's the chick that had been refrigerated!"
So I would advise storing your eggs for incubation out of the refrigerator, and using them as soon as you can. But you could still take a chance with older and/or refrigerated eggs and get satisfactory results.