My chickens decided to roast under there house to get away from the roosters. There is a ton of eggs under there we know they are fertile. the chickens have been setting on them now for two months. nothing is hatching. I don't know what the problem is. last fall they hatched all the eggs this spring they dont seem to be doing a good job. Should I clean out all the eggs under there and let them start over. When we grabbed an egg from under there and broke it there was a half developed baby. but there not making it to the chick stage.