Pressure feeling?

Im 33 weeks and I went in on Monday with a intense pressure feeling. It's back again today. It's from my sides to my crotch. They told me baby has dropped and I did a test to see if he could potentially be coming in 2 weeks the test was negative but here I am again with the pressure in my down stairs. Should I call the dr again or is this just normal? Im 5'9" but very slender. Could this just be me feeling a lot becuse im so small?