about 13 kilo for me - about 24 pounds / 2 stone. This was by my last weigh-in last week at 30 weeks.
I wouldnt worry - your weight gain sounds fine.
I eat healthily - nearly all home cooked fresh stuff. Maybe I eat sightly more than I used to - and OK I'll admit I do eat a bit more chocolate than I used to ...but baby likes it!!

This just seems to be the natural weight for me to gain with this baby.I eat when I'm hungry but I dont use being pregnant as an excuse to stuff my face....well not that often anyway!!

I think you're doing fine.