I have Squash here in Maryland that has just started flowering. The cooler spring slowed most of my garden but it is coming on fast. If your real concerned you can try talking to them, I've found some plants just like alot of love.
My zucchini and yellow squash are doing well, but the spaghetti squash gets little ones and they shrivel up. Is it because they're not being pollinated? I did the brush treatment and most everything else in the garden grows fruit. Puzzling indeed. Oh forgot, the eggplant has no fruit either.