I just rescued Cricket. She is 5 yrs old, and hasn't been spayed. I'm just wondering how long will her heat last and what should I look for, and how do I protect my floors? I know these are probably obvious questions but I have never had an inside unspayed female dog before. She is small enough I don't need to worry about other dogs getting a hold of her. I'll keep close watch. I was just wondering how do I handle it? I got her from my neighbor and let me say, she probably wouldn't know the answer to any of my questions.