Yes pups do soil their beds. I also had the same problem which Kasmanda is facing right now. My pup would not pee at the proper place no matter how long I waited, but as soon as he was in he would pee!! This continued to happen for the first 15 days. Then I shifted to reward method, i.e give a treat to your pup as soon as she relieves herself in the proper place. Remeber that you must give the treat the very moment she is done, not after coming back in. This method worked like wonder in my case & I hope it will help you out too.
But of course even this will take time, so be patient.
Also clean the area inside your house immediately if she pees at a wrong place, bcoz dogs like to pee at a place where they have done it earlier. So if you dont clean it up she will continue to pee inside.
You can also encourage her to pee at a desired place but putting a cloth/paper soiled with her urine at that place.
Also look of signs she gives when she wants to pee, like sniffing extensively & circling an area. Pick her up immediately & take her to the proper place. You can also associate a command like "do it" or "go potty", just keep on saying it in a low & smooth voice until she is done.
These are all my personal experiences....hope they will be useful to you. best of luck.