i haven't really gained any weight yet either (maybe 1kg), and i have actually found that my clothes size has actually shrunk since i first fell pregnant (meaning i was a size fourteen, and am now a size twelve and even fit some tens - particularly in maternity clothing). having said that i am at the very top of my healthy weight range and although i have definitely gotten smaller in total body size my stomache has deffinately expanded, and squiggles is growing happy and healthy. because of this my midwives and ob are not concerned, although they do still measure my weight at every check in.

it does depend on what your starting weight is as to whether you should be concerned about not gaining enough weight or not. last time i was pregnant i was 25kg overweight to begin with and i was told that it would be healthy for my weight to remain static, or even to loose a few kilos - i gained ten kilos then (all of it KFC and chocolate).