I am a nurse working in a busy department. With not enough staff leaving no choice to taking on calls a lot and sometimes working more than 12 hours and worst 16 hours. Often on call for 24 hours. Not sure regarding our policy for our hours of work when pregnant. I don't know what to do, need the job right now. Our manager don't care at all about our working hours. What can i do for this situation. Hope you can help me?