How do I tell if my eggs are fertile?

[Chickenluv22]

I have some older birds and a bunch of younger ones who are about 10 months old. I also have a 10 month old rooster who started mounting the hens a while ago and ever since I saw him do that I'm afraid all my chickens eggs are fertile. Is there any way I can tell if they are fertile from the outside, I've tried candling but idk how to tell.

 

[cavemanrich]

Incubate a few and follow the guide on this link. It shows what to expect in the first few days if they are fertile.
https://www.raising-happy-chickens.com/hatching-chicken-eggs.html

Not able to tell from the outside.
Of course if you eat your eggs, then you can see this.

WISHING YOU BEST,,,,,,,,,,,, and

 

[aart]

I'm afraid all my chickens eggs are fertile.

No reason to be afraid..what specifically are you worried about?
Chicks won't grow in eggs if you gather them daily-they are fine to eat,
they need a couple days at ~100°F to start developing.

 

[SueT]

I also wonder why you're 'afraid they're fertile.' And if you have some reason you don't want to eat fertile eggs, then why did you keep a rooster? Most of us eat fertile eggs all the time. In fact, last year, one BYC member put a Walmart egg in her incubator and it hatched! As I said, most of us eat them whether we know it or not.
You won't be able to tell without looking at the yolk, a very tiny difference as you see in the photos in post #2.

 

[Chickenluv22]

Thanks everyone. I think I'd be afraid of eating a fertile egg because I'd feel like I was eating a baby chick. I'm sort of vegetarian lol.