If you have other reason to believe that your father molested you, then your dream may have something to do with that. I don't know if you've discussed that before.
But, assuming otherwise, I wouldn't spin your wheels too much about the dream or worry about what your father may have done to you. What happens in incest? A significant male figure in your life that you love and should be able to trust violates that love and violates that trust. He betrays you, uses you, abuses you, hurts you beyond measure when you are very vulnerable. You are powerless to stop him, what you want doesn't matter, he continues to hurt you.
The symbolic interpretation here is blatantly obvious for pretty much any LBW shattered by the actions of her WAH. So, unless you have other concerns about being molested, my guess is that your dream is about your current trauma and pain.
