Hi This is my first hatch this year.I had 2 incubators. when the eggs were 1 and half weeks old, I tranfered them over to a bigger incubator that i bought. SO far i had a early bird hatch one day before everyone else. I had about another 12 hatch on the same day. But now i have about another 10 or so. NOt hatched. They are all good that i know of. These are rir. So hard to candle. I do know some can be late ones. But how long should i wait ?(days)no pipping or rocking ect.