Subcronic hematoma

I’m 3 months pregnant and I was recently diagnosed with a sub chronic hematoma and was put on “bed rest” for 3 days. I’m allowed to go back to work tomorrow, but am a little concerned because I’m a server so I’m constantly on my feet for 5-8 hours a day. Has anybody else had concerns like this? I’m not sure what I’m asking about, just anything helps