I have 4 eggs due to hatch tomorrow and one due on Thursday. At day 17 I candles the eggs before lock down because we were going out town the next day and I wouldn't have time to check all the eggs. I noticed that the air cells where on the small side. So I pushed back lock down and ran a dry incubator for a day and a half. When we got home I checked the eggs again (almost day 19) because it was so late. 2 air cells had grown tremendously and where the right size still 3 where not. They are measuring between day 14-18 on the chart. I went ahead and put them on lock down. I did see movment in all of them before lockdown. So my question is as tomorrow is hatch day and I know it can take 24-48 hours for anything to happen, when should I start to worry about there not being any pips? Will I need to candle the eggs on a certain day? There are no pips yet and it's a day early but I'm wanting to be as prepared as ever for what ever may come since this is my first hatch ever.