Hmmm....9 mos old is a pretty grown up pup. At that age they are usually past the soiling bit. Maybe try to think if anything has changed at home, feeding times, walks, your work etc. If everything is exactly the same routine, I would crate her at night. Put her out as late as possible and let her out as early as possible. Are you maybe going to bed earlier or sleeping longer in the morning? in any case, she would be old enough to whine and wake you. try feeding her no later than 5:00 p.m. and no water after 8:00 p.m., see how she does with that.