Unless it is a seedless type, and even if it is one of a few of those kinds, it will need pollinization to bear fruit. If you are short of bees, you may have to do it yourself, with a paintbrush or a Q-tip. Look for the male flowers--they have no baby cuke behind them--and gather a little pollen from them to brush on the inside of the female flowers. It may be getting late for full sized fruit, but hopefully you can get some babies going.