Arby's?

Amanda
Is an Arby's roast beef sandwich okay while pregnant? I wasn't sure since they are kept hot. It's all I crave, and I have a tradition of going there with a co-worker every other Tueaday while we do meals on wheels. I'm not ready to announce my pregnancy since I'm only 5w2d. Is Arby's okay? 
Also, I have heart burn like crazy. I've never had it like this before.