I am new to keeping chickens. This is our first year. We have 2 Buff Orpington hens, 2 Welsummer hens and an Easter Egger Rooster. They are all 24 weeks old. We got 1 egg, 2 days later another egg and now for the past 9 days....nothing. I have searched high and low and NO EGGS. How is this possible??? Any suggestions??????