Hi there. We have our first chickens ever. Got them when they were 1 day old, and now they're about 22 weeks. They're not laying, and I was wondering if that's normal. They have 3 nesting boxes with shavings in their coop. We're still feeding them the grower pellets since I thought you didn't feed layer until they were actually laying. Could this be why? Any ideas or thoughts? Thanks!!