Incubating Eggs at Different Development Stages!? Help!

[suburbfarmgirl]

Is it possible to put freshly collected fertile eggs in the incubator with a few eggs that were under a duck and already developing for two weeks? I wouldn't be able to stop the turning toward the end or change the temp or humidity for just the two eggs that are further along. Might they still hatch?

Story of why below...

I have been collecting my Welsh Harlequin eggs for a few days to put in the incubator. Since I wouldn't nearly fill my incubator I asked around locally and found a few people who wanted to give me more duck eggs to hatch out. One person gave me about 20 eggs that she collected the last few days, but also a pair of call duck eggs that her Muscovy had been sitting on (for a week or two). She took the eggs out from under her because she looked like she was losing interest. So now I have about 35 larger breed duck eggs that are 1-4 days old, plus these two call duck eggs that are already well along developing! What should I do? Just put them all in and see what happens? I am really hoping I can hatch them out! She said her call duck pair was show quality and she very sadly lost them recently

 

[XxMingirlxX]

Is it possible to put freshly collected fertile eggs in the incubator with a few eggs that were under a duck and already developing for two weeks?  I wouldn't be able to stop the turning toward the end or change the temp or humidity for just the two eggs that are further along.  Might they still hatch?  

Story of why below...

I have been collecting my Welsh Harlequin eggs for a few days to put in the incubator.  Since I wouldn't nearly fill my incubator I asked around locally and found a few people who wanted to give me more duck eggs to hatch out.  One person gave me about 20 eggs that she collected the last few days, but also a pair of call duck eggs that her Muscovy had been sitting on (for a week or two).  She took the eggs out from under her because she looked like she was losing interest.  So now I have about 35 larger breed duck eggs that are 1-4 days old, plus these two call duck eggs that are already well along developing!   What should I do?  Just put them all in and see what happens?  I am really hoping I can hatch them out!  She said her call duck pair was show quality and she very sadly lost them recently  

If the eggs have been sat on and then cooled and given to someone else they won't hatch, sorry. This is the best thread on hatching eggs:
https://www.backyardchickens.com/a/hatching-eggs-101

Hope that helps