I have always had lucid dreams but they never come with consistency or 100 per cent accuracy.
About 23 years ago I woke from a horrible dream in which my pregnant sister had taken a fall on the stairs and she lay at the bottom in a pool of blood. All day I couldn't settle my thoughts and I felt nervous all through the day where I would just start crying randomly. No matter what I did my mind always kept going back to thoughts of this dream, so I decided to find out, I was compelled to find out. I lived two hours away and she didn't have a phone at the time so I called my dad, who lived 4 blocks away from her, explained about my dream and that I needed him to go over and check on her. He called me back later that night to say that it is a good thing that I had called him as earlier that day she had fallen on the stairs. He assured me that she was not bleeding and felt alright but she just wanted to make sure so she wanted to go to hospital to confirm. She had been looking for a ride when he showed up with the car. He then gave her a ride to hospital. She and the baby were fine. My dad had no idea that at times I have lucid dreams and it freaked him out. My sister, who is older than me, told him that I had always had them. That I have called her many times to just to find out if she was alright.
The problem is that sometimes I have horrible dreams but I can't tell if those are the ones that will become reality so I try to ignore it. I wish I could be accurate so I can help more.