Some recent surveys have shown that Yoga if done properly is beneficial to all of mankind. Practising Yoga is an excellent way of becoming fighting fit. The postures like Cobra, Camel, Bust Exercises etc. Remember yoga aims at bringing physical as well mental well-being of a person. It's okay to continue practicing yoga while you are pregnant as long as you were practicing before conception.
Yoga is a great way to keep fit during pregnancy.
In general, however, you want to avoid strain, compressing the belly or abdomen and inverted postures, especially in the later stages. In general, yoga promotes health, a sense of calm and relaxation. Moreover, there have been a number of studies that show meditation can be a great help in controlling high blood pressure. Certain yoga postures should be avoided, however, if you have high blood pressure, including the shoulderstand, headstand and downward dog. These include Warrior I and II, Mountain, Triangle, Half Moon, Tree, Standing Squat and Symbol of Yoga.