braxton hicks or baby moving?? help!!!

38 weeks and 5 days today last few days I've felt stronger "kicks" and "movement" almost like tugging or stretching (so hard to describe!) but I'm not sure if it's baby or braxton hicks?? Anyone know how to tell the difference or can tell me what the heck braxton hicks feel like? I was told if I'm not sure to go to labor and delivery but I was just their Sunday for my my weekly non-stress test and all seemed well and maybe I'm just being paranoid and over worrying but I don't want to risk his health!! Please help!