We have a 12 pullets (4-EE, 3-RIR, 2-Rocks, 1-BO, 1-Australorp & 1-Red Star) and got our first (small green) egg at exactly 18 weeks. She missed the nesting box (floor level) but it was in the coop on a shelf. We were very excited but it has been three days and no more eggs. I wonder if she...