I've used Ruth for last two pregnancies to do pregnancy yoga and I can honestly say without those classes I wouldn't have been able to have the births I experienced. The first I actually had in a car and the only pain relief I had was using the breathing techniques that Ruth taught us, then my last baby I had at home, again no pain relief. Ruth teaches in a way to make it easy to use in practice when it comes to the birth. I highly recommend any pregnant women to do pregnancy yoga.Pippa Smith