Hi
Dont loose hope, there is a lady in our group and on her first week she only lost 1lb as well. HOWEVER she is now 5 weeks later Slimmer of the Month for last month, some peoples bodys take a week to adjust to the change, depending on age and your old eating habits. She said her trick was in the second week she drank a 1ltr of water everyday to help her body start to flush.
Shes now making great losses every week. Dont be dishartended i eat a LOT of carbs its just your body reacting diffrently to others.
Also look at a lbs worth of sugar thats the weight you lost in a week! And plus you have already made the hard start and started your journey.
Have faith and continue what your doing, we are all going to cheer you along x