My polish hen has laid 4 out of 5 days now but today she laid a soft egg and now she is acting like she has to lay another egg. Is it possible for the shell to be stuck or something? We are gonna give her a bath because she has some yolk on her butt. She wanders out of the yard when she wants to lay so I have to lock her up until she lays, but now she is wandering again. Does anyone have any suggestions or ideas as to what could be wrong? She eats layer feed, has oyster shells if she wants them but free ranges a lot and rooster gets mad if she is not around.