Have a few questions

I'm almost 34 weeks and my doctor hasn't really been keeping up with my baby's growth. The last time she measured or even told me his weight was at 20 weeks. I am starting to worry if my baby is measuring small or big or right on track. She doesn't seem to be worried but then again she leaves a lot of things out that other women get done like urine tests and stuff. I hear everyone else knowing how much their baby weighs or even know an estimate and they know position and all of these other things and I feel like she isn't telling me anything. What should I expect to happen for my 34 week appointment.