Plus size mommy

Hi any plus sized mummy out there ? Would like to know your weight gain at 30 weeks.. I have gained 3.4KG at week 30 and baby was measured at 1.2KG at week 28z I wonder if I am on the right track or should I be worried because it seems like my weight has dropped a little… I have GD thus I also cut down on carbo and sweets, I wonder if that could contribute to me losing weight.. but still I am worried 😫#pleasehelp #advicemommies #firsttimemom