Yes, you can still take regular classes, but as you get larger, they may be too difficult. Listen to your body — you know it better than anyone else. If something doesn’t feel good, don’t do it. If you start to feel nauseated or lightheaded, slowly stop the exercise and relax. If this persists, talk to your doctor. Steer clear from high-impact aerobics like kickboxing and anything involving body impact. When you reach your second trimester, it’s also important to remember to stop doing exercises on your back and start doing balancing exercises with support so you don’t get injured — pregnancy isn’t a good time for sports injuries.