I need a ray of hope, cold hard truth is fine

[Crystalchic]

On April 14 my neighbors dog killed all of the chickens in my pen
since then I made the coop stronger, and now use it for my baby chicks that are to small for my grown up pen, but to big for my brooder. they are all over 2 months old but younger than 4 months old. none of them are laying
I found a silkie egg in the nest box. I am certain that it is from my black silkie that was killed
Is there any form of hope that this egg will develop and hatch into a healthy chick

 

[rooster-red]

Would that mean the egg is 5-6 weeks old?

If so the odds of it hatching are extremely low.

 

[Crystalchic]

On April 14 my neighbors dog killed all of the chickens in my pen
since then I made the coop stronger, and now use it for my baby chicks that are to small for my grown up pen, but to big for my brooder. they are all over 2 months old but younger than 4 months old. none of them are laying
I found a silkie egg in the nest box. I am certain that it is from my black silkie that was killed
Is there any form of hope that this egg will develop and hatch into a healthy chick

OMG: I made a terrible mistake it was March 14, its not gonna hatch is it
I have been incubating for over a year now and my brain is telling me no way
and if it develops it will die during incubation