I am having a lot of embryos failing around pipping stage. This with hen incubation. I hope it is due to extremely wet and relatively cold temperatures during incubation. Game hens coming off in last week giving only 50% hatch and American Dominiques 25% hatch at best. Normally dom's give about 60% hatch and games nearly 90%.Disappointing hatch what went wrong? I am using a little giant incubator this time I added an egg turner and a computer fan. I started with 26 eggs 7 failed to do anything maybe they were not fertile. On the 21 st day i had 11 healthy chicks hatch with in about 12 hours. So far all are healthy and thriving. After several days i decided to open the others up. all 8 had fully formed dead chicks. What could have happened.