You have nothing to be worried about as far as I am concerned. New layers eggs typically start out small and get bigger with time. the same with not laying regulary (not sur ehow to spell that). they are still trying to get things down and their systems going. And they are still young. The EE in my avatar didnt start laying until she was 11 months old (not common for them to wait that long she just started laying when she was good and ready and I was fine with that). I have 3 6 month old cochins that havent started laying yet. 1 5 month old leghorn not laying, 2 5-6 month old orloffs not laying, 1 5-6 month old favorelle not laying, 7 month old ameraucana not laying, 7 month old araucana not laying (not all age are dead on). Just some examples.