I never give up on eggs unless they are obvious clears or start to smell. My fingers are crossed. You might want to start looking for a place to buy baby chicks in case only one egg hatches. Brooding one chick by itself is hard on the chick as they are social animals.
I'm very sorry for your losses. Most of us here have, at one time or another, made costly mistakes when it comes to coop security. The important thing is to learn from your mistake and improve things going forward. It sounds like you are doing that.
I'm very sorry for your losses. Most of us here have, at one time or another, made costly mistakes when it comes to coop security. The important thing is to learn from your mistake and improve things going forward. It sounds like you are doing that.