Call your OB, plus water and rest. Unless your contractions start to get increasingly painful and are within 4-5 minutes, or your water breaks, L&D will probably send you home. I've been having contractions since 32 weeks as well, put on bed rest until 36 weeks, and here I am now, at 38 and change. :) Still contracting, but I'm able to paint (with no-VOC paint), clean and go to swim class, and do pretty much whatever I want. I would say continue to take it easy until 37 weeks, then start nesting away.
And what PP had said, call your OB to see if they will give you something for now...you don't want LO to come this early.