Monty peed in the house yesterday afternoon and last night, i need some in put on this. The accident last night i understand he asked to go out but i wasn't in time so that i can excuse but the afternoon thing i don't understand he hasn't peed in the house for months and all of a sudden he is lifting his leg in my house.
We are currently moving so the whole house is disrupted could it be that this moving thing is making him feel anxious?
Lightening and Stomps is probably right, but I think it's always a good idea when a housebroken dog suddenly starts peeing in the house, to check with the vet and make sure he doesn't have a urinary tract infection. They are not that uncommon.