& 6 1/2 months pregnant?

im 6 1/2 months pregnant and i have to say, is next to horrible. it has nothing to do w/ my fiance, but for starters, i have a huge stomach that gets in the way (and its a boy, i might add so it def. doesnt make it any easier). i try to bend my legs up to my head as far as theyll go, but i cant. it makes it extremely hard to breathe and it basically crushes my stomach. i feel like im being sat on by a whale or something. i hate to complain, but having not being able to breathe or in pain doesnt exactly make 'pleasurable'. i feel really bad for my fiance because obviously, isnt the same. not to mention its only gonna get worse the bigger i get and his bed is a twin size! is there another place, position, or SOMETHING that i can try that will prevent this from happening? doctors tell women TO have at later stages than me and they, from what i know, have no complaints. wtf am i not doing ?