I would say that at 22 week there is still plenty of time for the baby to turn. Some babies don't get into the right position until the very last second!! I would say, try not to worry for now. If he/she still hasn't turned by the 32 wk scan then think about things then. In the mean time, make sure you are not slouching backwards etc to encourage baby to move into the right position, sit on a birthing ball, scrub the floors!!