Same thing, here. I'm almost 37 weeks.
Any movement will make them happen or make them worse. Driving the golf cart down to the barn (bumpy) really sets me off. When I lay down, though, they subside. Until.......DD (almost 2) climbs on me and uses my belly for a slide. That gets them going, too! LOL!
They're not productive at all here....I'm not dialated one little bit.