All squash need regular water but will suffer without good drainage, I water my pumpkins once or twice a week depending on hot how and dry it is.

Once your pumpkins start to grow it's a good idea to make little hammocks for them out of old nylons or some other breathable, stretchable material. This will help prevent the fruits from rotting and will also give you more attractive and well-formed pumpkins. You can also make pillows out of dry straw, but it's not as effective and you need to change the straw if it gets wet.

Good luck!

No need to change straw just use a larger pile of it. One thing is the first blooms that appear are considered to be male blooms. Female blooms will have a small green pumpkin behind the blooms. May be several weeks after the male blooms appear that the fruit bearing blooms make their appearence.

My "pumpkin" plants appear to be watermelon plants at this point. That shows my extensive knowledge of gardening.

Haha no, those are pumpkins. I know exactly what you mean, they do look very similar when they're immature, but you can tell that it's still a pumpkin from the brown circle (scar?) from where the flower falls off. Don't worry, and keep doing what you're doing.

You can definately tell the difference between it and any squash vine, pumpkin. Betweens members of the squash family no.

Not my picture

Here is a link that might be useful: Watermelon vine.

I will post a pic tomorrow.

The first two are the plant growing in the dog's pen. The second two are right behind the house.
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Cantaloup maybe. The last picture is very interesting. Are the veins actually that lighter color or is it dust residue? If the plant is actually that color may I suggest that you keep some of the seeds and plant next year to see if it's offspring have the same coloration. Of course if it has offspring.

I think the one behind the house is some type of a gourd. It's always fun to see what the volunteers will produce.

The dog pen plant just started producing.
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Crookneck squash used to have that many warts but looks nice what ever it is. Many gourds are eatable when young.