Our dog/puppy used to be potty trained, now goes when called? Also moved recently and carpet is now new. : )?

I have a dog/puppy (miniature American Eskimo) that is now one year old. We got her at 8 weeks old, she was very smart and healthy. She learned potty training (peeing outside; sitting by/scratching the door when she need to go out) very quickly, about when she was 6 or 7 months she was completely potty trained. All went well for the next 6 months, no accidents or anything. But recently, actually on her b-day (Nov. 4) she started peeing inside again. And, if you say "'come on lets go outside", she immediatly squats and pees, and if you reach down to pick her up quickly to take her outside, she starts peeing (while in the air). Its like she forgot that shes supposed to pee outside and thinks that picking her up or saying 'Let's go outside' is a command to pee. She's very smart and we have no other problems with her, and since this peeing inside is relativly new, I'm not really sure what to do. Punishing her or rewarding her after she goes outside doesn't work.