Can all my eggs be infertile?

[cristonella]

I have a rooster and 7 hens. one of my hens went broody and collected 10 eggs. One by one she pushed them out or we found them as an empty shell near her. This happened twice this summer. All the eggs must have been infertile… is this possible?

 

[aart]

I suppose it could be possible.
Did she sit on stay setting long enough to candle(5-7 days)?
Had you checked the yolks as you broke eggs to eat to see if they were fertile?