Two days ago, our pullets began laying! We got an egg from two of our three Golden Comets (18 weeks old). One contained a double yolk. -really thought nothing of it until today. These two gals gave us two more eggs. -same one layed a double yolk again today. Since we are new to chickens, I was just wondering why this is transpiring. -know it is an anomaly, but not certain if it is no big deal or if we should be concerned. Any information would be helpful/appreciated.