what it means when theres a blood ring around a newly set egg. I got 12 shipped to me, and 5 of them have just a red ring around part of the yolk. this is on day 5 of incubation. I am getting good veining and dark spots on the other 7, so whats with the 5? is there something I could have done to change this or is this the norm for shipped eggs? FYI this is my first attempt at incubating.