I have a red sex-link that started laying about 1 week ago. Its first three eggs were perfect shells and everything. Then the past four 'eggs' have been layed without any shells on them just the membrane. One of the shell-less eggs had another yolk on the outside of the egg. She is being fed Layer pellets, oyster shell, access to clean water. Is this normal for them to do this in the beginning? Will she stop doing this soon?