At this point in my pg my doctor was seeing me almost every week, so I were you I would just call and get in to see him/her.
And for what it is worth--I had my kids 2 wks late, 2.5 wks early, 2.5 wks late. You really can't tell at this point when you will go into labor by counting days.
I had very irregular contractions with my first and second, so even timing them was only somewhat helpful. They would be 5 min apart, then 20 minutes apart, then 10 minutes apart. :-0 But...I was always in a lot of pain when the real deal hit.
Also, I never really started contracting or had the baby drop gradually with the last one. One morning I just got up with our older child and all of sudden the baby dropped, I had minor contractions, started dilating, etc. Because I had already done this twice, I knew I needed to get to the hospital but did not need to get upset or crazy. LOL My point is, he was 2.5 wks late and I had no usual signs of labor except losing the plug!
Just go by what your dr says.
Go with your intuition and if you are hesitant at all, don't be afraid to get it checked out. ;-)
Everyone's labor is a tad different, but I am sure you will know when the real pain hits. ;-)