This is my first time hatching. I have 2 dozen EE eggs (light green and oliver eggs), and 3 eggs from my hens. The hens are White Rocks and a Delaware, and the roosters are a little Old English Game Bantam and one of two Silkies. So far, i'm think the 3 eggs from my hens aren't going to be a success. Some of the greens/olive eggs have really dark spots, with some I can see a veiny looking shadow. This is day 9 - what should I see when candling at this point? Thank you!!