Depends who does it but one time I lay on my side with my bottom leg straight and the other leg bent across. The last time I went I lay on my back and hugged my knees while she did it.
Keike, don't be embarrassed hun, they see all shapes and sizes and the ones I have seen are really friendly. I have mega rolls on my tummy and scars from the c/s' and they don't blink an eye.