HAB, were there any drone cells? If not, the new hatched queen has only got about a month before she HAS to mate, otherwise she won't be able to.
I seem to always have that problem this time of year. A young queen, but it either doesn't get to 69 degrees so she can fly, or she can fly but there are no drones! I've seen this in the almonds as well, and I suspect most other long timers who've done almonds have seen it.
So, bottom line, if you haven't seen any drone cells (and I'll stick my neck out here) I doubt that you have, then you'll have to artificially inseminate or just not bother making nucs.