I am like a kid the day before Christmas. My chicks are scheduled to be picked up next Tues. but I am seriously thinking about going to the hatchery and seeing what they have "on the floor" and getting 6 today. Can I just put the others in next Tues. if I get these 6 early? Would it be better to just add 6 at the same time I pick up the ones on order. First timer here, any input appreciated.