Medical Leave while pregnant

What's your opinion on medical leave while pregnant ? Has anyone gone through this? I'm on bed rest right now but I might be going on medical leave on Monday for a short term right now cause I have a bruise behind my placenta and I'm at high risk of miscarrying. I am 9 weeks1 day. I work at a hospital. My job is very heavy work. They want me to stay home for a while or maybe weeks once I follow up Monday with my obgyn to see how I'm doing.