Very likely. Go to L& D to have them check you out. :)
Generally, baby drops around 37 weeks or even earlier, so that's not exactly a sign of labor. Also every pregnant woman has a tiny bladder so again, not a sign of labor. If you have contractions that are 5-7 mins apart and are getting more intense, THEN you should be worried (or rather, excited?!) because that is a forsure sign of active labor. Still, call your doc if you are worried. :)