It can be normal, but if your little one seems uncomfortable then you could try lightly massaging her tummy using circular motions and offering cooled boiled water to help things get moving (1-2oz spread throughout the day should be plenty, anymore could be potentially harmful).
When she does open her bowels, if it is soft then pooping every 2 days is most likely normal for her. However if it is firm or pellet like then chances are she is constipated and you should consult your doctor. xxx