I have three girls. When they were close to laying eggs for the first time I was trying to avoid buying any eggs, but finally broke down and bought a dozen - first one layed the next day. Then dh went out an bought another dozen for reasons unkown to me - the second layed the next day. Weeks later after we'd been just using their eggs and not buying, my kids decided that they wanted eggs for dinner. So I bought a dozen. Third girl layed the next day. Its like they know those white store eggs are in my fridge and figure they better get moving!