Your not the only one, my losses are small, sometimes I don't lose anything, I too get dishearten, but I'm learning now not to give up, I now don't care how long it takes, as long as I know that I am doing my best, as long as I can be true to myself and stay on plan it's ok.
I prefer to lose a pound week or every other week but never to gain. I made a hugh mistake at Xmas, I came off plan for two weeks and gained 9lbs otherwise before that I nearly reached my two stone mark since joining in May 2010.
Easter is coming and believe me, it's gonna be hard cos kids are home, on top of that it's an extended holiday due to the Royal Wedding, this will be my big test!
So my message to you is don't get dishearten, come here when down, you need to fight this feeling just be proud of what you've achieved so far and just think if you lost 7lbs double it in a couple of months and that's 1 stone lighter.
All the best
Xxxxxx