Princessmama I have just had a B.O. sit on nothing from 24 th of Dec and then on 17 th of Jan I put 3 Pekin cross eggs under her and she hatched all 3 on the 6 th Feb but sorry to say she squashed 1 by mistake. So she sat for 45 days in total so I think your hen should be fine.
![67136_yellow_chick.jpg](https://www.backyardchickens.com/forum/uploads/67136_yellow_chick.jpg)
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