Hi Nicca77

I too am 17 weeks with baby number 3. This time I have gained only 5 lbs or about 2.5 kg. With #1 I ended up gaining about 25kg and #2 was about 20kg. As I am busy with my girls I am sure it will be less this time. Don't stress too much about it you are in the normal range. The weight gain doesn't happen at an even rate. One week you think "Wow, I don't seem to be gaining much" and another week you think " Oh no I must have been eating like a pig."