At this stage, the body will release a hormone (called relaxin) to loosen the ligaments and joints in preparation of the childbirth. Therefore, this may put the mother-to-be at a higher risk for injury. Low impact exercises such as swimming, walk, prenatal yoga, squats and stretches are recommended to minimize the risk of getting injured while exercising. Another thing to note while exercising would be to ensure that the mother drinks enough water. Especially when exercising in Singapore, our humid weather may increase the chances of getting dehydrated.
Always listen to the body. Lower the intensity or stop when required. Exercising is supposed to help the mother feel better (mentally and physically) and not cause additional stress.