Working in a haunted house: if you're getting really hot, that could pose a problem. Your baby's oxygen is regulated by your body temperature. If you get too hot for a long period of time, it could cause some stoppage of the flow of oxygen to your baby.

I wouldn't go to a haunted house either because if you were running from something and fell that could pose a threat to your baby. It's always better to be safe in these circumstances.

I hope this helps you. Good luck

Working in a haunted house I doubt would hurt anything. How far along are you? Hey i'm in utah too! Well, if you ever want any advice, you can write me, I am on my fourth (and last) pregnancy and have a little bit of experience. Anyway, good luck and take care of yourself.