To me it sounds like you might just be experiencing the joys ;) of coming towards the end of your pregnancy, but not really feeling labor yet. My contractions never got to a clear 5-1-1 or 4-1-1 like most OBs will tell you that you should look for before coming in (they were all over the place), but there was a clear start and stop. So, I'm not one to necessarily follow the waiting rule super closely, but it doesn't sound like you're in a ton of pain just yet. If you are, then definately call the OB. Otherwise, take it easy, rest, and drink lots and lots of water- the biggest reason I hear of people heading to the hospital and then getting sent home is dehydration.