Excellent
This program is wonderful. I have been doing yoga for 5 years, and, although it does not challenge me in the usual ways (backbends, inversions, etc.) it definately opens up the hips and is preparing me for birth. I highly recommend it to all pregnant women.

Good stretching and flexible options for all nine months
I have used other Shiva Rea CDs, so I expected this to be more challenging than it actually is. However, it does offer good stretching that feels good and complements my other excercise. I like the option of doing the full 50 minutes or choosing shorter pieces of that, and the demonstrations of the three women that represent each trimester make it very easy to follow appropriate modifications. I'm just entering my third trimester, and I think I will find it particularly valuable in my last few months.

Not for beginers!
If you have never done yoga before try something else. I had never done yoga before and thought this would be a good place to start. I started a few weeks before I actually was pregnant and I could barely get through the first half. I had no idea yoga was so hard. By the third-trimester though I was really into it. It helped so much for my lower back pain. I've had lower back pain for a few years, then was in an accident in 2006, then another one when I was about 8 weeks pregnant. I really feel like this saved me during my pregnancy once I got the hang of it. My son is now 2months old and I still do this from time to time when I want something more relaxing than my cardio and weights.

A good prenatal yoga DVD
I started prenatal yoga early in my pregnancy by going to a class once a week. This DVD and the one by Colette Crawford was recommended by my instructor. I got them both, and I would say both are pretty good.
I would recommend C. Crawford's DVD for earlier times during pregnancy, or if you have previous yoga experience. There are a bit more challenging poses in that one such as the warrior pose. Towards the end of my pregnancy, I ended up using only the Shiva Rea's DVD, as she presents nice/light alternative versions (for second and third trimesters) in case you are not feeling you can do the regular versions of the poses. I did more Kegels and squatting than what is on the DVD.
I strongly recommend prenatal yoga for a healthier pregnancy and birth. It helps feel more relaxed and energized. It was very useful for me to have a pretty stress and problem-free pregnancy and get mentally ready for natural childbirth.

WONDERFUL prenatal exercise
This DVD is truly terrific. It is very easy to follow, and the instructions are very clear. As a long-time yoga lover, I am pleased to see that the video gives subtle but important safety instruction, along with emphasizing the usefulness of isometrics during yoga. In general, though, it is super relaxing. Three fifteen minute exercise segments plus a guided relaxation section at the end make for a perfect after-work yoga session. For the last couple of hours at work every day, I look forward to coming home, getting out my mat, and settling into these relaxing (yet challenging) stretches. I can feel my breath capacity expanded after completing the workout. After using this in my first and second trimesters, I am very impressed with the clear modifications and with having the different instructors in different stages so you can see how the modifications work. I hope to use this DVD up until the very end of my pregnancy. The relaxation benefits are incredible.