I have eggs coming on Monday(12eggs), Wed (5eggs). and Fri (39) next week. I want to put them in all in the same incubator on the same day. (would that be Sat.) I know people say they can hatch eggs up to 10 days old, what about eggs that are of diff ages all set the same day. I have heard older eggs will take longer to hatch. I know about moving the cartons. Is there anything else people want to mention?