I've taken mine up and just have one in the living room. Suzi is 14 weeks. (Katie was 12 months before I put mine down again.)
She's getting the idea of using pee pads and going outside too. Although last night she and Katie had wee'd outside and when I took them upstairs. I was on the loo and she decided to copy me on my bathroom rug. lol.
I could do nothing but laugh.
Hugs Shirl x x