Should I go to work or call in?

Last night my boyfriend broke up with me. I've never loved anyone like I loved him, and he says he still loves me but it's complicated. I spent all last night crying and cutting myself, I don't know how to deal with this. I took a shower and I've been sitting on my bed crying trying to get dressed. I'm supposed to be at work in 2 hours but I know that if I go, I'll be miserable and I'll probably start crying. I'm a bagger at a grocery store so it's not like they need me. They can call someone else to come in. Should I call in or try to go?