I am starting my first new nurse job on Tuesday (12 hr shifts). I breastfeed my five month old son exclusively. How hard is it to maintain milk supply while being away from baby for 13 hrs, three days a week? Also, how realistic is it to think that I will be able to pump at least once during the day while at work (I will be in a busy L&D unit)? I guess I am wanting some advice/words of wisdom from someone who has "been there, done that". Thanks!!