Ok so I am new to keeping chickens and my girls have just started laying eggs. I found one yesterday in one of their nest boxes. Today I go go out to clean the coop and when I open the side door there is a nest of 13 eggs that I didn't know was there! I have been checking the nest boxes but didn't even think about checking any where else. So here is my question. Since I didn't even know they were there I obviously don't know HOW long they have been there, so is it ok to use them? How long do the eggs keep? It's been hot here like 87-88 degrees, will this make the eggs bad or are they still good to use? I am lost right now, please help! Thanks!