Babyluv I freaked out about the same time as you- I had a month where I put on almost 6 kilos in 4 weeks. (Making up the 10kgs by 22wks). My doc said that the second trimester is often when women gain the most weight.

It slowed down a lot for me- some weeks I put on some, some I didn't. I was quite small to begin with and so I'm not too worried. I have kept exercising throughout the whole pregnancy too (although it's quite different 'exercise' now, to 20 weeks ago!) which makes me feel better, whether I put on more weight or not.

Don't worry sweetie, everything is there for a purpose and it all goes to bubba. Eat when you're hungry, make healthy choices, and allow yourself some comfort food. And if you put on more than you expected to (like I have) unless your doc is worried, all you can do is sit back, enjoy yourself and work your butt off when you're ready to take it off!