I have 16 eggs in and all have been doing good just a few concerns....I have one that is forming just fine all along but its aircell is on the side of the shell.... and some of the aircells are not as big as I would want them to be..... not sure what I can do for them at day 18. just waiting and hoping for the best!!! I am a nervous wreck and cant wait! I just cant stop looking at them!