When I was pregnant with my last baby my antenatal teacher encouraged us to adopt the above position as often as possible to get the baby in the right position and avoid a back to back labour. Unfortunately I didn't make it past this class as had my DD 4 weeks early so didn't get to ask when you should start. This time round I'm really exhausted and just flop onto the sofa in the evening but as I'm trying for a VBAC I really think I ought to try to get the baby in the right position. so when should I start spending my evenings sitting on a chair backwards as if I'm Judd Nelson in The Breakfast Club?