Transverse?

I'm 36 weeks and I'm pretty sure my son is transverse. He kicks me on my lower left side and hiccups on the lower right side. My OB hasn't checked his position yet, but it seems pretty obvious to me. I've been doing some of the exercises on spinningbabies.com, but he's very stubborn and doesn't seem to be moving! Should I be worried? Does this mean I'll need a cesarean? I really want to have a natural birth so the thought of a c-section is devastating and terrifying to me.