I have just booked Molly in for her second injection today and she is just 10 weeks old, no comment was made on the phone so I'm now wondering if I will be told to come back at 12 weeks. The breeder said she could have her second jab at 10 weeks and, like you, I am longing to be able to take her out and put her on the ground and not worry about other dogs being around! Perhaps your vet just prefers to give the second jab at 12 weeks? Or I might be sent home this afternoon with no jab!