When pregnant, my wife used a 'body Pillow's that she could adjust to give her extra support where needed. Pretty common suggestion for pregnancy from what I've seen. Maybe one could help you?
And I'm with you on no back sleeping.
Finally Fat:
My wife keeps a little pillow in bed which she positions beneath her belly when sleeping on her side.
I hate that little pillow between us when she lays facing me so the fix is I remove the pillow and press my belly in to hers where the pillow was. I lift hers and allow mine to flow in to the space created. Then I allow her belly to rest down upon mine. I love removing my hand and feeling so much fat- double sided fat!
I've grown fat enough to serve as a man-pillow.
Love that!
