I have this one pumpkin that is growing really nicely and I read online that I should rotate the pumpkin so that it sits on its bottom (where the leaf has dried up and fallen off). I tried to do it but I felt there was too much stress on the vine so I left it alone. Any suggestions on how I can go about positioning it on its bottom since it's sort of growing sideways?

Pic of the pumpkin

http://i.imgur.com/9h32N.jpg