I had 4 just orange glow, 2 with blood ring, 3 with darker on the large end to the middle of the shell with a really black dot, I also and some darker shelled eggs look to be black to the middle some I could tell what was the air pocket others where to dark I know the blodd ring and the glowing one NG but what about the black to the middle ones??
If your not an expert don't candel too soon. 12 day or better still 18th day. More you handel, less chance you have.
I have only candled brown eggs before, but it was really too hard for me to tell what I was seeing till around day 10. Give it a few more days and check again.
