My 3 hens have not layed any eggs in 2 weeks. They were laying everyday since the 1st day we got them. About a month ago we got a pin built for them. Big enough for the turkey, and 4 chicks. My chickens used to run around free until we had a dog problem. I make sure that they always have food and grass. What am i doing wrong that they wont lay any eggs? Is it normal for chickens to stop laying for a while?