Generally, exercise during pregnancy is good for both you and your baby. If you already do regular exercise, you should keep it up at about 50-80% of what you normally do. If you don’t do regular exercise, you should start a routine of gentle to moderate exercise three or four times a week for about half an hour at a time.
In some cases, for example if you have pregnancy-induced hypertension, exercise is not recommended. If in doubt, Iris will be able to give you proper guidelines for your situation.