What can I do?

For the past 8 hours, I've had contractions 4-6 minutes apart, lasting 45-60 seconds. But they'll come, get increasingly worse pain-wise, then go away for about 15-30 mimutes, then start right back up. The whole time, contraction or not I've had this burning feeling in my pelvis/pubic area and lower back. I *think* (and hope and pray) that this is probably early labor. Is there anything I can do to keep the contractions going or to get this show on the road? I'll be 39 weeks tomorrow