Eat them and enjoy! Even if fertile, it takes longer than overnight for them to start developing. Eggs can be stored at room temperature for at least two weeks and still be fit to eat. In fact, in France eggs are not refrigerated and for selling purposes a fresh egg is an unrefrigerated one less than two weeks old. Hope this reassures you.

To test for spoiled eggs, put one in a glass of water. If it floats, it is bad, if it sinks, it is good. Also, If you wash the eggs you need to refridgerate. If not washed they keep for quite a while. Enjoy, and I envy you!

Cheri