Krisp, I would recommend the book Optimal Foetal Positioning which is available from Capers Bookstore online. One of the authors has recently written a new book, can't recall the title, which has the same information in a more reader-friendly format (the first one is very easy to read imho, but is geared to midwives). As mbear said above, posture is sooo important. The book is fantastic. I've had 3 posterior babies, so obviously my pelvis favours that position. My first was a large posterior breech (c/sec), my second was a VBAC who delivered OP (long and painful but so worth it), my third I used postural techniques to encourage OA presentation (again--so worth it), and my 4th was a prem who was delivered by c/sec for other reasons. The book is fabulous--do everything it says. Send me a pm if I can help further. xx