Hi I am 10 weeks pregnant and having problems at work. I told them 2 weeks ago I was pregnant because I was being made to lift heavy boxes, I am an office coordinator. They still haven't completed a risk assessment and now want me to work 7 day in a row? Does anyone know what I can do about this because I am so tired all the time and this is making me so stressed I am scared I will miscarry. But I also don't want to be sacked for refusing to work 7 days.