Hey. One of my budgies laid 4 eggs. This is her third clutch. Three of the eggs hatched but it has been about 5 days since that and the fourth still hasn't hatched. All of her egg have been fertile so far. Could something be wrong with the egg? Is it possible that it is just taking a while? If something is wrong with it when should I take it out? Thank you for all the help so far.

Josephus.