My 23 week old barred rock looks like she's trying to lay her first egg. She got up this morning, ate and looked for a nesting site. She has one and stayed there several hours scratching the shavings. Later she came our making the loudest sounds according to my husband and looked distressed...to him. He checked, no egg. Then she got quiet and went back into the coop. She's been going in and out all day. Is this normal for a first egg??? Thanks.