If you are pregnant or are breast feeding then you should NOT use any type of teeth whitening products on your teeth, even if your breast feeding then you should still not use a dental bleach.However you still may be able to use the home dental polisher for teeth whitening and a prophy paste but you will need to ask your dentist first. ( DO NOT USE DENTAL BLEACH WHEN YOU ARE PREGNANT OR BREAST FEEDING ) Teeth whitening systems