So, kinda strange question but is it normal for the yolk/embryo to acquire some very interesting shapes and or seem to 'stick' to one side of the shell?
Also, noticing pink lines inside the shell, bacterial infection? (would not be surprised, loads of dirty kid hands touching these eggs every day...) The embryo seems to be alive but not as energetic as its sisters.
Finally, While my air cells are... ok for day 7, some are much bigger than others. There does not seem to be rhyme nor reason for the disparity as the eggs are shuffled around quite frequently (result of being kept in a preschool, EVERYONE wants to look).
Also @demidog I totally kept an egg in my bra today when I needed to find my flashlight. Kept on worrying about it falling out! I think I would want a purpose built bra, or at least not a cami.