I found an unusually large egg in the small clutch im letting one of my hens sit on. I candled it and saw 2 yolks inside, im very happy and kinda scared at the same time. I've heard that both chicks could possibly die, and they cant get out by themselves because they'll kick each other to death. I know that helping a chick out of its egg could hurt it, but I dont know what to do. Its only been a short while shes been sitting on the eggs. Help?