No squash this year, I guess :(

I keep checking my squash plants for fruit and finding nothing.  Not sure if they didn't get enough water, or the soil isn't what they need or what, but I keep getting blossoms and nothing else. What's worse, one of the 2 coworkers who got my culls came up to me a few weeks ago now, delighted to be able to tell me that she'd just harvested her first squash!  I'm jealous - everyone else who's got squash plants has squash by now.  Maybe another coworker was right - "You gave away the good ones." ;)