Jonas, my baby puppy, has been close to 100% trained to his pads. About 2 weeks ago he started peeing on the carpet, but only in the morning. And not first thing, he can hold it for hours, sometimes doesn't let go till 11 am. He does go poo first thing, but for some reason is holding back peeing, until I guess he can't wait anymore and the carpet gets flooded. The rest of the day he goes 100% on the pads, no problem, does it on his own. I started rewarding him every time he uses the pads, and make a big fuss, but we still have the morning problem. I've tried a few different things, so far he is still holding it. Any ideas?