Hi Paula,
Ya know I bought this pair a year ago, she laid her first pullet eggs not long after, I sat several with no luck, I was a bit dissappointed at first, I've heard from some folks who raise them that it's very hard to get fertile eggs from them, I would have to AI(artificial inseminate). I left them alone and thought he'll get with the program on his own, he did....this last cycle she went through every single egg was fertile. I sat them ALL under a broody cochin hens all of them hatched! I have more due next week. So the moral to my story is they CAN breed on their own and yes you can get those eggs to hatch. I would have used my incubator, I just had girls waiting for eggs and threw them under. They are extremely vigorous at just a few hours old. It's nice to have the clean legs too, I raise two featherleg breeds and keeping those feathers nice is a chore!!
Good luck!