Hi! It is day 28 of my Mallard duck eggs hatching! I have two and one has discoloration and one is perfectly fine looking. However, the discolored one now has a crack in it as if something is pushing out. I thought this egg was dead but I'm not sure. There is a crack at the top of the egg and some yellow liquid is coming out. My other one hasn't changed at all, all day. When candled, neither of them move and I do not hear any noises from either of the eggs. The one with the crack also smells. Please help me!!!!