Helping labour/baby along?

Im going to be 37 weeks on thursday. Ive been cramping and for about a week now, its been getting steadily worse also. Is it wrong or selfish to try to help kick start things? I realize all the pineapple/walking/ in the world will not help it along if things aren't ready to go. My husband brought up the point that maybe I should just leave things alone bc its still a while off from my actual due date. But this cramping is getting increasingly painful, to the point that I can't sleep. Our son came late. He was about 42 weeks when I had to be induced. I had zero cramping or discomfort prior. So going naturally is all new to me. I would rather not be induced again if possible too. Well Im stating to ramble. What happened with you and your pregnancies? Did you wait? Did anything get you going?