I was going to just ask this on someones post but I figured this might be better. I have six pullets that turned 18 weeks old today. One of them, either a red sex link or a black sex link, laid 1 small light brown egg on Sunday evening. So far I haven't found another egg. I was able to get them on layer feed yesterday but the store was out of oyster shell. I had accidentally bought parakeet grit with calcium when they were little, can I give them that until the oyster shell comes in? The employee I talked to said they "might" have it on Friday If your new layers stopped after their first egg or two how long did it take them to start laying again?