I'd eat it. I eat what I want. I'm 30 weeks tomorrow and I've had plenty of deli meat sandwiches and never heated them and I'm fine. Just me though, I also drink caffeine and have a sip off my guy's beer once in a while... I guess I'm not very uptight about these things.
U would not eat it since you didn't refrigerate it. I wouldn't want to risk any chance of bacteria from it sitting out and cooling.
Yes its fine as long as its heated and its the same day you got it. I wouldnt suggest buying one warm then waiting a few days without reheating but u should be fine if its been heated and its the same day.
But it's not really safe after a half hour. Just realized you said you didn't refrigerate it.