You can use diapers (preemies) on them to help prevent them marking on your furniture and floors. They do make panties for female dogs for this reason. They make some really cute panties, even ones with ruffles. So cute!!
Diapers will not prenvent a breeding. Just wanted to let you know this, since in the past there have been a few people on here (YT) that thought it would and then they had an accidental breeding.