This is my first time hatching chicks and so far everything has gone well except for one egg. I noticed the chick started unzipping the egg at around 8:30. The chick had made a fair amount of progress but after an hour quit. I figured it was just taking a break but it is now almost midnight and the chick hasn't made any more progress. I am able to tell that it is still breathing. Is now the time to step in and help?