Oh boy, the memories... I had a lot of trouble sleeping and in the end I didn't care how I got comfortable (usually my right side was best with a pillow between my knees and under the belly & boobs)... I must admit, it got worse for me as the weeks went on but once bubs was born all the uncomfortableness (is that a word?!) went away.

Just do what you can, even if it means sleeping on the lounge chair with 10 pillows around you and if you get the chance, have a nap during the day or after work (for some reason I could sleep better during the day than at night).

Good luck!