@creativetruth I would wait until you know if they are male or female, normally the female has a bigger bump under the flower which grows once pollinated.
With what you have said in which you use to plant your plant sounds like you are going way over the top with the stuff your adding to the soil.
When I am growing pumpkins, before the beginning of the season, I add only well-rotted horse manure to my soil and dig that in, that is everything.
I then only use water until I have fruit on the plant, that is when I use my nettle tea, this was something that @papa-pepper got me into and I have never looked back since.
I feed them twice a week.
I use worm castings I think they are the best thing ever, but I don't use them on my pumpkins.
I have read that male flowers normally come first on pumpkins at about day 55, and then after the males the females come along.
I don't know what country you're in, but it also could be too hot for them, or not enough bees to pollinate the plants, or the females are just too small to tell the difference.
I would hang on to the ones you have and see what happens, if your watering every day, cut it down to 3 days a week, if your not watering enough then make it up to 3 days.
I wouldn't give up.
The seeds I use are called jack o lanterns, they can grow about 100 pounds if looked after properly.
One last thought is to add some coffee beans to the compost you are using, this I have read is great for pumpkins. :D