I just got my baby girl 2 weeks ago

Pictures are coming as soon as i unpack the cord for my digital camera! Anyways, when I got her at 10 weeks, the breeder had her little medical pamphlet with her weight at 10 weeks as 2.14 lbs. I've been free feeding her and she gets a little peice of a treat whenever she uses her pee pad (not a whole one because she goes so much!). The next week I took her into the vet for her second set of shots and an ear infection she had since I got her. Anyways, when she weighed her, she was 3.5 lbs! Is it normal for her to gain over a pound in a week?