Listeriosis pregnancy

So I’m seriously concerned over this because well…. Thanks, google! Anyways, my bil left the freezer open and the icecream cone I had was s starting to melt. The ice cream was mousse like texture and the chocolate at the bottom of the cone had completely melted. I’m in tears crying because I’m scared over the change of getting it and something happening to my daughter. Can anyone please give me any type of input? I’m a worried mess I can’t even eat or do anything. I don’t want to lose my daughter