I noticed one of my Rhode island red gals was making a lot of noise this last week and her wobble was nice and red along with her comb where as the other 2 gals were still light pink and small so i knew she would be the first to lay, but had no idea it would be this soon. Not even 5 months old! I bought oyster shells but had not even begun to feed this to my hens yet....She is staying on her egg and not eating so what do I do? Is this natural? Yes my first egg ever.... A new chicken farmer grandma so yes I am excited.