This may sound odd, but I've noticed when I have a contraction or Braxton hicks hat my uterus is way over to the right. It's easier to tell when I'm having one cause it's so hard I can feel the outline. But it goes all the way to my right hip, but only about 3-4 inches to the left of my belly button. Anyone else out there notice that their uterus is off to one side or the other?