Waiting..... incubating...What are the signs of a hatching egg?

[LeghornGuy]

I purchased an incubator on ebay. It is a very cheap one designed for classroom experiments.
I placed four chicken eggs in the incubator on February 16, 2008.

Are there any signs or clues that I should look for?

It does not smell. If the eggs are bad, will it have a foul smell?

Since the incubator was cheap and for the classroom, I dont have my hopes up. I am curious.

What are the signs of a hatching egg on the 18th day or 19th day?
You input will be helpful.
I would like to hatch two chicks but that is wishful thinking.

 

[chickenlover210]

Well I ahve no idea but will be hatching my self
hopes all turns out well

:f

 

[silkiechicken]

On day 18 you stop turning and just wait. They should start to pip on day 20/21 and hatch 12-36 hours after pipping. Might want to read though this for more info if you haven't already. Good luck!

 

[claud]

Sometimes, if you peep, peep at them you can hear them peep back at you(no, I've never done this.