Jeff, it's not uncommon for the first few eggs to be infertile, even with a good roo present. They'll most likely lay for at least 6 months or so, I would be worried about that at all. If you eat the first few eggs, and check the yolk for a bull's eye each time, you'll know right away when you start getting some fertile eggs. Then you can start hoarding and hatching!
Or, if you just can't stand to sacrifice a few, you can save up a dozen or so, stick them in the 'bator, wait 3-5 days, candle, and see if anything's developing. If you don't see anything, wait a little longer, candle at 7 days. I've never had development start that late, but if shells are really dark, or thick, you mat not be able to see well enough to tell until about 10 days. Anything still completely clear at 10 days I toss, I used to keep them until day 15, but they never did anything that late, so I stopped. You should have at least some fertile, but I'd wait until they'd been laying at least a month to figure out what percentage fertility you're getting, because it'll probably start out low, but get at least a little better.