That is great! I enjoy yoga too and I'm glad you're enjoying it. Pilates just about kills me though!
Keep in mind though, yoga is wonderful for getting to know your body and how it works, what feels comfortable for you, and releasing stress, but it doesn't really burn all that many calories for significant weight loss. Quoted from an article at
"Most forms of yoga do not burn significant amounts of calories. This is important, as a strong predictor of long-term weight loss success lies partly in the ability to exercise for maximum energy output. While yoga can certainly fatigue the muscles and require a great deal of effort, the net energy expenditure from yoga is not likely to be high enough to promote the all-important caloric deficit, which is what you need to lose weight. There's an easy solution to this: simply make sure that in addition to yoga, you're engaged in some form of enjoyable aerobic exercise-walking, cycling or swimming. As with all weight management tools, yoga can become a powerful partner in helping you achieve your goals, as long as you set reasonable expectations as to its strengths and limitations"