the spinnning babies website has a description of how you can 'map' the position of bub but what you can feel, and bub's movements.

also, ask your ob to explain what they are feeling, and how they can tell position of bub.

i get all my kicks on the right side, and feel the big lump (the torso) on the left. from about 33-34 weeks, the foot would stick out and i could trace my finger along the leg as it wiggled.