I have a sapphire olive egger hen that laid her first egg on Memorial Day (4 days ago). Since then, she has not laid another egg. Is this normal for the breed/young layers to not lay for this many consecutive days? I also noticed 2 days ago that she went into her usual nesting box and was in there for quite awhile, stirring and making noises like she was laying, but there was no egg to be found whenever I went in to check when she left the nesting box. I am unsure if there is need for concern (egg bound, something is wrong), or is this is normal?