I have a flock of red sex link pullets that are 29 weeks old. They started laying small eggs at about 20 weeks old. But the eggs havent got much bigger. Seems to be taking longer then normal. My other flock of Barred Rocks only laid small eggs for about 4 to 5 weeks then they got about jumbo size. Could there be anything effecting the egg size? Too much protein,,,not enuff protein?