early labor

I have a question about early labor. I woke up this morning to a crampy feeling. Didn't think anything of it. At 7:13am had a contraction timed it. Started off having them every 9 min then after 45 min they where every 7 min. After a hour and a half they where every 5 min for 35 min then went up to every 9 min and they keep doing this. Get closer together then farther apart closer together then farther apart. It is now 11:13am n hasn't quit at all just not staying close together. So is the early labor or is this just tricks? They def hurt n r intense. O I am 38 weeks and 5 days.