Oh breeding is super easy when you put mutts together though!  /grin
I've just arranged to get a nice trio of bantam rocks in the fall.  I'm so excited as this is the line I had before and they really did well for me.  (Until raccoons eat them.)  They bred and hatched so easily.  
On the other hand, I had a superb line of OE blacks from a well known breeder.  I couldn't get them to breed/lay/hatch for love nor money.  Finally when I did, the same raccoon killed the 3 babies I got, one of which actually looked like a show bird.  After months of trying to get anything.  But then again I learned a lot from them.  I always thought that you just give a guy two girls and voila!
But sometimes it's not easy.  You kind of have to try something - give it a couple of weeks to a few weeks, then try something more.   Then in your line's future, choose males for fertility to correct the issue and improve your line.
I do hope you get some good hatches and clutches though!  For what reason are you breeding, may I ask?  Show? Fun? Or?
Very exciting times!