Thats great the critical social development period for dogs is 4-12 weeks of age then comes their juvenileperiod up to 6 months although I personally inclined to believe that period really lasts till 9 months
I've never had a female, but with the boys, you can THEN expect the "BIG JERK" phase, which can last up to 20 months!

At least I did with mine. His "protectiveness" really developed at this time, without a real handle on discretion just yet... quite a challenge

. Pretty typical of a young man, if you think about it

. Age has indeed brought him wisdom and a more calculated approach to things though... thank goodness!
~Natalya