Be sure to check soil moisture before watering. Soil moisture has been very high. Many of my veggie aren’t growing either. Too much water can set plants back and recovery takes a couple of weeks. It has also been too cool until this week to expect much growth. Of course, hot weather (85F and above) inhibits flowering. Hopefully we will have a long fall and a harvest. For best results fertilize according to the instructions on the label. Too much fertilizer promotes leaf grow instead of cucumbers.
Good luck and I hope we get perfect weather.