Is your incubator home made? You need ventilations holes in your incubator as the eggs need to breathe and need oxygen. I'm afraid without oxygen or air flow the eggs will not develop. This is paramount for embryo development and for your eggs to lose moisture. If your eggs do not lose enough moisture and the air cell does not grow in them the embryos will not make it.
It's also advisable to get your incubator running and stable for at least a couple of days before adding eggs.
Please do have a read of this link ~
https://www.backyardchickens.com/a/hatching-eggs-101 It's a wealth of information and has a great link to homemade incubators.