If you are fit and used to exercise, you should keep going while you are planning to have a baby and whilst pregnant. If you do not exercise regularly, it is good for you to start to exercise to build up your fitness levels. It is never too late for you to start doing exercise.
Regular physical activity is one of the best things to help you and your baby have a happy and healthy pregnancy. During pregnancy you should aim to do at least 150 minutes of moderate activity a week. Anything that increases your heart rate, makes you breathe faster, and feel warmer counts towards this.