This is the first time raising chickens. I have 6 Barred Rock hens that will be 23 weeks old this Thursday. I was told they lay between 18-22 weeks old. I have friends who have chickens and they say I should be getting eggs by now. They look and act healthy. I have them on layer feed now. I try not to over do it with the scratch. I dont get it. How long should I wait until it is determined there something wrong? I opened their boxes up to and put some golf balls in them. They dont even go in them.