Yup I eat Arby's all the time. lol...(Im not so good with the self control)
Like larissa said you might want to re-heat it. According to my doctor, he said cold cuts are fine if they are from a respectable place, listeria is just a form of food poisoning if you've never gotten it before chances of you getting it while preggo are slim. However, if you question it just re-heat and eat! And Enjoy it...you deserve it!!
The only lunch meat I'd stay away from is cured meats like salami (they aren't cooked).