I got some hens on the Feb 5th as day olds, 132 days old and two of them are laying. I have some Mc Murray Americanas, Some Buffs, and Silver Laced Wyandottes. I have been getting 1 little blue egg and 1 little dark brown egg a day. Isnt it a little early for them to be laying? We are apporaching 18 weeks, and how long before the little eggs start getting bigger?