After uploading phontos of an egg I was told that it had a blood ring.. After crack it there was a chick and blood vessels, please read my post and help
https://www.backyardchickens.com/t/897171/are-theses-eggs-fertile#post_13654823
https://www.backyardchickens.com/t/897171/are-theses-eggs-fertile#post_13654823
