I have 7 pullets that are 18 weeks old. I noticed this morning my Buff Orpington and one of my Wellsummer's combs have turned quite red. I know that this is a sign that they are preparing lay. I haven't noticed any crouching or squatting, but have not spent my usual 1 hour so each evening watching them, I have company in. I have their nest boxes blocked off and have not purchased any layer feed, crushed oyster shell or even any hay to line the nest boxes. Should I have this on hand? Goodness, I was so prepared for my baby chicks, now I feel as though I don't have enough information in my head!! Any suggestions would greatly be appreciated! To top it all off, I leave for vacation tomorrow! I could possibly miss my first egg!!