(Gratis, OH)--A pregnant woman jumped from a window to escape a house fire following an explosion in Preble County Wednesday night. It happened on Coleman Avenue in Gratis. Two women were trying to light a kerosene heater when it blew up. The more seriously injured of the two was flown to UC Medical Center to be treated for burns. There’s no word this morning on her condition or the condition of her unborn child. The second victim was not as seriously hurt. Damage to the home was extensive.