Is this common? My golden comet started laying a few weeks ago, we got an egg a day for 10 days. Then Sunday evening she squatted in the middle of my deck and laid an egg with no shell and hasn't laid anything since. Three days with nothing. Her behavior looks normal to me, she's drinking water and eating and doing all her daily activities as per usual. I haven't switched to layer feed because the rest of my ladies aren't laying yet but she does have oyster shell available all the time. Anything I should be looking for? These are my first chickens; I'm new to this. Thanks!