Its dark in the egg!

[Poison Ivy]

Here is a few pics of day 1,5,12,20 that might help you.
http://www.msichicago.org/exhibit/chick/egg.html

 

[Fancy Feather Poultry]

Poison Ivy, I red the rest of that site and it was all about cloning mutations and stuff it was freaky.

 

[Chellester]

As long as it doesn't stink, I would just keep it until you know for sure.

 

[jimnjay]

I have a chart that shows development for all 21 days. Anyone that is interested can email me and I will email the photo. They are actual eggs opened at each day of development. Pretty graphic so I don't want to post them but I will be happy to share.

 

[Fancy Feather Poultry]

I would like a copy please send me and E-mail.