Going back to work

Janna • Mom to angel twins born sleeping at 18w and a chemical baby. RIP Maven and Macie and Littlefoot.
Any advise for going back to work after a loss? I lost my 18week old twins on May 11th and am going back to work tomorrow.
All my co-workers know what happened but I'm still worried someone is going to say something insensitive or that people are going to be awkward around me.