Puppies as a general rule can hold their urine 1 hour for every month old they are ... give or take a bit. 6 months is still very young and about the age they begin to physically realize they have to go potty ... instead of "what is that feeling? Oooops! Something is coming out!" You have plenty of time yet to get potty training completed. Just keep up the training ... and keep it positive.My boy is just about 6 months old and I'm not sure what the deal is. Maybe he's just not completely potty trained?? He does fine for weeks at a time and then he'll pee in the house a few times in a day. I can't figure it out.