Yoga, a low-impact fitness alternative, allows pregnant women to continue an exercise regimen without straining their heart or harming the baby. The rewards of basic yoga outweigh the potential physical risks, as long as you take caution and perform the exercises in moderation according to your flexibility level, said the American Academy of Orthopaedic Surgeons (AAOS).

"Women, who are expecting, can benefit greatly from exercise, especially yoga - they just need to be aware of their limitations," said orthopaedic surgeon and mom-to-be, Rachel Rohde, who is with Beaumont Hospital in Royal Oak, Michigan.

"A pregnant woman's body goes through a lot of changes that will alter the way she practices yoga, whether she is a veteran or a beginner," adds Rohde.

Maternal stretching and meditation for expecting mothers gives women an option to be comfortable and healthy during their pregnancy.

Yoga is an excellent choice for maintaining strength and flexibility, focusing on breathing techniques and continued relaxation. 

"One of the best aspects of yoga is being in control of your body and having the ability to do each movement at your own pace," said Rohde. 

To reduce yoga-related injuries, the AAOS recommends that pregnant women should avoid "Bikram" or "hot" yoga, which can raise your (and the baby's) body temperature too high.