I am going to try incubating some eggs for the first time. I introduced my Americana Rooster with the Americana hens and my Chanteclair Rooster with Chanteclair hens on Tuesday evening. How long until the eggs get fertile, I tried looking with the light I made, but the Americana egg shells are green, and chanteclairs beige so it makes it really difficult to see. Will cold weather affect it? Since its January and it gets really cold here, but it stays warm inside the coop.