I think that it is a gourd, but am not sure. I planted butternut squash (which I know it isn't), spaghetti squash, gourds, and other vegetables. It is on a vine and there are about 10 growing. When am I supposed to pick them?
I think this looks like a loofa, a gourd. This one perhaps is already over ripe, not sure if it is some yallow variety.
Looked like bitter gourd to me.
Leaves looked like loofa.
Looks like loofa to me, both leaves and fruit.