My hens are 17 1/2 weeks. They started laying at 15 weeks. Some are using the nest boxes, but about once a week I find eggs on the floor. The ones on the floor are usually broken and they may or may not be eating them. I'm wondering if these are the first time layers. I have noticed an increase in the boxes after these episodes, but I had a rooster that became aggressive that I had to move out so things have not been smooth enough for me to know for sure. So do I worry about the floor layers? Or are they inexperienced and I can soon find their eggs in the boxes?