Nightmares of death

I'm 5w pregnant and in the past week have had two very vivid dreams about people or pets I really love dying. The dreams are so scary and real that I can't shake them after I wake and cry for a while. Has anyone else experienced this? What does it mean? Will they stop? I don't want to dream about loved ones dying throughout my entire pregnancy! Any help would be excellent! I'm really shaken right now. 😢