I also have no will power when it comes to sweet things. So I decided not to buy the crap at shopping so it wasn't in the house for me to get at. That is also hard so most of the time i write up a shopping list and give it to DH to do. He only ever buys what's on the list and never impusle buys thankfully. So that's how i got around that one. Since then though i have had way more energy this pregnancy and havent gained a ton. I have actually lost 6kgs. Least that is 6kg less i have to loose afterwards!