I have 5- 13 week old chickens. One rooster and 4 pullets. My husband noticed a rubber egg in the pin that I keep them in at night. I have older chickens so I kinda know the signs of a hen getting close to laying time. I have a Red Star that seems more mature that the others. Her comb and waddles came in early and have turned red. She is definitely a hen. She has been really really talkative lately and she has been interested in the older chickens nesting area. I assume it's her. Is it okay for this to be happening this early? I know the rubber egg is from one of the young pullets cause the older hens does not have access to the pullets pin. They are on grower/ finisher feed right now. Do I need to put the one that's laying on layer feed if I can figure out who it is?