Is There Any Chance My Eggs Are Alive?

[Physhyr]

I had a hen sitting on fifteen eggs. One chick hatched a week ago. Two days later I found a second chick but it was dead. None of the other eggs hatched. Mama hen kept sitting on the eggs, but was pushing one or two out of the nest every day. Today she was off the nest and all the eggs are cool. So I have two questions: First, is this behavior normal? (I've never had a hen hatch eggs before.) And second, am I right to assume that if the eggs are cool then they're all dead?

 

[Chickens are awsome]

Have you candled them to check for life? They could have been dead before and that's why she would shove them out.