By Fiona Leishman A couple and their unborn child have died in a horrific crash before Christmas as they travelled to share their exciting pregnancy news with loved ones. Chloe Stott, 24, and her husband Parker, from Utah, were making their way to Arizona to spend the festive season with their families and share the exciting news with them on Wednesday, December 20. But, as the couple made their way down Highway 93 in Wickenburg, Arizona, at around 8.15pm, they collided with a white Volvo lorry after failing to completely pass another car in their lane. Chloe and her unborn baby were killed on…