I let my new baby sleep with us, she has a cat collar with a little bell so I can hear her moving around if she wakes up. As soon as I hear her moving I take her to her pee pad. She goes then I take her back to bed, so far no potty accidents in the bed. The bell also helps me know where she is on the bed so I don't roll over on her. I only use the collar at home & at night, if I take her out then I use a harness also with a bell instead.
All the best with your new baby