Can I Exercise During Pregnancy?
Doing gentle exercises and continuing moderate exercises (which you were accustomed to in your non-pregnant state) throughout is not associated with any adverse outcome if you have a low-risk pregnancy.
Certain activities like contact sports, high-impact sports like jumping and vigorous racquet sports may involve the risk of fall and abdominal trauma, falls or excessive joint stress, and scuba diving, which may result in fetal birth defects and fetal decompression disease should preferably be avoided at all times.
Yoga is safe until the fifth month of pregnancy after which you should check with your doctor about any specific physical or breathing exercise that you wish to continue.