pumpkin?

This incredible garden of ours sure is full of surprises. I love the mystery of a volunteer plant, so I leave many of them to grow in the garden (much to John Paul's despise!). Therefore we have huge sunflowers that run the border of our garden (which consumes all of our back yard!), and sweet yellow tomatoes, bright red cherry tomatoes, kale, and now this...a pumpkin? I thought it was a squash or cucumber...but I am most certain I'm wrong about that. Hopefully we will be carving jack-o-lanterns in a couple of months!