When Joey was under a year, I had pads in almost every room, I didn't want him to have to go far to find a pad. He learned the fastest where we have wood floors and tile, the carpet confused him. He's 4 1/2 now, and he has two pads, one for pooping and one for peeing, he doesn't like to poop and pee on the same pad, he also doesn't like to use a pad while I'm in the room, I don't know what I did wrong, but he doesn't ever want me to see him go. On walks it's different, and he'll pee every chance he gets! I say make it so it's easy for them, and really they'll let you know which rooms they prefer going in. I use to just put a pad, anywhere he'd have an accident.
She may have a few set backs at this age, teething and spaying seem to set them back a little. My breeder told me to ignore the accidents and praise the mistakes, it does work.