I think I've been feeding my young pullet (about 22-24 weeks) incorrectly...for quite awhile now. She is in with two laying pullets, and they have all be getting layer feed since I got them several months ago. This youngest one has not started laying yet. Should I change the feed to starter until she does, or now that I've had her on layer for so long just leave it? I've read today about how the extra calcium is hard on their kidneys. I will feel terrible if I've caused any damage to her...she's our favorite and our baby. This was our first summer ever having chickens, so we are still learning.