Staying in shape is always important, especially during pregnancy. Moderate exercise can strengthen the muscles you use during childbirth, such as the abdomen, pelvis and lower back.
In addition, exercise can improve your posture and relieve discomforts such as back strain and leg cramps and prenatal exercise helps you prepare for childbirth to increase their strength and stamina, you can ingest calories consumed in excess, oxygen plus its blood and therefore the baby and significantly improves your physical condition necessary to bring the final stages uncomplicated pregnancy.
In general, if your pregnancy is developing normally, you can continue practicing the same exercises I did before getting pregnant. However, you have to make a slower pace as your pregnancy progresses and feeling some pain, nausea, or dizziness, stop exercising immediately. This is the way your body asks you to lower the exercise.
If you have not been exercising regularly, pregnancy is the ideal time to begin an exercise program.