I just got a 1yr. 3mon. old RIR roo and put him in with my 4 mon. old hens five days ago. Only one of my hens is laying so far, but she does not sit on them yet. How long will it take for us to get fertile eggs that she will sit on and hatch? Please help!!!!!! I'm new to breeding chickens, so any help will be great!!!! BTW, if anyone knows if the chicks will turn out RIR, Amber Link or a mutt breed, please let me know!