Age of eggs in incubator unknown!!

[Charlieschicken]

Basically, I am incubating some goose eggs and I have just candled them at day 10 (or so I thought) but when I did candle them it looks as if they are older due to there size! am unsure about there age and when to stop turning? Does anyone have any advice???

 

[sumi]

Welcome to BYC

If you post candling pics we can guess at how far along they are, but I think the safest best would be to monitor their development and check when they look ready to hatch. I.e. when the embryo fills most of the egg, beside the air cell. Turning them at the end won't hurt them, but it's important that your humidity is correct when they start hatching. Here are some images and info that may help:

https://www.backyardchickens.com/t/491013/goose-incubation-hatching-guide-completed/0_30