I am 30 weeks pregO today with my first angel. I am enjoying everything about my pregnancy except of course the weight gain and now I have terrible back pain. Not lower so much but upper between my shoulder blades and I cant take it!! I have a job in a call center (CCCS) and its very depressing listening to everyones problems when you're pregnant and this back pain does not help!! please help me!! Will walking help, swimming? what can I do????