pregnancy question...

So now I am 32 weeks! Yay! any way I have been feeling regular movement for a long time. My question is, I have never felt her move on the left side. Ever. With my other two girls they were ALL OVER the place. But this babies movement does not cross an invisible line. the line is where my bely button is. I don't ever even feel the large parts over there, like a back or anything. pushing on the left side with my hand I can't feel her from the out side either. but I can on the right side just by placing my hand there. and when she moves away from my hand she moves down, not to the left. Is there something blocking her? will her head be mishaped from being in one position for 9 months? also I worry that since she is on the right side all the time and since that is the side i sleep on most so my good ear is up and I can hear the girls, am I making it worse? When i do lay on my left side it feels like my belly is sagging but not quite resting on the bed. when i am on my right side it feels supported by the bed. Any who. I am going to ask my Dr on monday but, I was just wondering if anyone knew anything about that.