Hi Sabrina,
If you've got flowers the squash should be starting to grow - look underneath the leaves, the fruits are usually green to begin with so might not be immediately obvious. Remove some of the larger leaves to allow the fruit to grow & ripen.
Squash plants need plenty of room (ideally 3ft), so if they're crowded that may be affecting them, they also need quite a lot of water.
Hope you're eating squash soon & hope this helps
Karen