How old does roo have to be before I get fertile eggs?

[havi]

I have a roo that isnt even 4 months old yet and hes already 'trying to do his business'. I say trying because everytime Ive seen him hes always in the wrong area. He hasnt started or even tried to crow yet. So when can I start to see fertile eggs? I went to collect the eggs for the day and dropped one on accident. I noticed there was a small white spot in the middle. I'll try to post a picture in a minute. But Ive seen a couple photos on here showing theirs and I think it looks the same.


ETA:

]

 

[morelcabin]

All eggs have a small white spot in the yolk, but when it turns into more of a ring with a center then it is fertile.

 

[morelcabin]

From the picture I don't think that is fertile yet, but it is hard to see whether that spot has 'ringed' or not:>) I'd say about 5-6 months for the rooster to be fertile, but I could be wrong.

 

[chickenlady]

There is a sticky at the top of this page by speckledhen. She has great pics of a fertile/infertile egg. Check it out.