I’m just going to write this as a piece of advice/warning.
There have been a number of studies that show the correct turning of the egg (timing and orientation) in the first three or four days in particular has long term impact on the long term health of the chicken. Most people know not to disturb the eggs during the last three days but I still read about people doing exactly this here.
Another point to bear in mind is eggs are porous and whatever you may have in the way of bacteria on your hands can be transfered into the egg.
If, as you should, turn the eggs regularly then you will be handling the eggs a lot so hygiene is important.
There have been a number of studies that show the correct turning of the egg (timing and orientation) in the first three or four days in particular has long term impact on the long term health of the chicken. Most people know not to disturb the eggs during the last three days but I still read about people doing exactly this here.
Another point to bear in mind is eggs are porous and whatever you may have in the way of bacteria on your hands can be transfered into the egg.
If, as you should, turn the eggs regularly then you will be handling the eggs a lot so hygiene is important.