I keep having the same dream about one snake what does it mean?

The past nights I've been having a dream about one certain snake it is a black and white stripped California King snake in my dream it is venomous.The dream starts off like a normal day in my apartment then my fianc� brings in the snake and he tries to get me to hold it and pet it.It tries to attack my dog (Tini) and I protect him and scream at my fianc� to take the snake outside and leave it outside so he takes it outside and lets it go.Well then in my dream I lay down on my bed and I can feel it crawling up my legs so I jump out of bed and run into the kitchen but the snake is already in the kitchen so I run into the living room and sit on the couch and relax trying to wake myself up then I feel it crawling up my leg again so I kick it off and i run into the kitchen and sit on the counter against the fridge looking up the snake and it tells me on the computer that its a venomous snake.My dog come out of the bed room and tries to protect me but the snake jumps at him and bites him and my dog dies instantly.I'm screaming for my fianc� to wake up and help me but he doesn't wake up.So I grab a shovel (which for some reason was in my kitchen >_< I don't even own a shovel) Anywho.....I grab the shovel and chase after the snake trying to cut off its head and kill it. but I can't match its speed so I try to out smart it so I walk slowly to the front door and it comes at me I open the door and it follows me outside so I double back and slam the door shut (shovel still in my hands) and decide to lay back down because its outside well i lay on my bed my dog somehow comes back alive and he cuddles up with me then I feel the snake wrap around my leg and slowly crawl up I try to kick it off but for some reason it refuses to let go I lift up the covers and look at my feet and the snake bites me on my left foot and it feels like i can feel the teeth sinking into my foot and its red eyes are staring right into mine as it bites harder.Then i wake up and rip the covers off me and nothing is there.I've had these dreams for about a week now its the same dream over and over I've looked it up online but yet I've found nothing.Can anybody help me clear up this dream so I can fix the problems or at least try to so i can get a good night sleep for once?