I *almost* have my husband convinced about getting Esme a brother or sister. I have a few more questions though!

This may seem like a silly question, BUT Esme is pee pad trained. When I get my new puppy, will they be able to use the same pad, or will the new puppy need his/her own pad??? I keep thinking about all these different things that I need to figure out before we get our new baby!
Thanks guys!