I'm with Kel, it is just so subjective. I only put on 2 kilo's in the first trimester which is fairly average but take into account some people have massive boob growth (which weighs a lot) & there is a lot of extra blood being produced etc. so they may put on more than that, or suffer m/s & actually lose weight.

Trust me.... I lost my mind worrying about weight for the first 26 weeks but now I can honestly say that if you put that energy into making healthy choices (good nutritious meals) then your actual weight is irrelavent.