9 week old holding for long periods of time
I am looking for a some advice. I picked up an 8 week old GSD female last week and have been home with her for the first 5 days. She has been great. No accidents in her crate since I got her. I have been taking her out to potty every 3 to 4 hours day and night. Yesterday was her first day home alone while I was at work. I put paper in her crate to encourage her to potty in the crate (she has been paper trained by the breeder) while I am at work (I am away from home for approx 9 hours). When I came home, I saw that she did not go potty in the crate for 9 straight hours. I immediately took her outside and she did her business.
My question: should I be concerned that a 9 week old is holding for 9 hours? I am considering putting a potty pad in the crate, but I dont want to confuse her since she has been doing so well with pottying in the same place outside since we brought her home. I am concerned that her holding for this long is not healty. Any suggestions?