Hi everyone i was just wondering how much weight on average will the baby put on in the last 8 weeks?

I went for a scan yesterday and was told baby weighs about 2kg, now my DD weight 3.5kg at birth born at 39 weeks is 8 weeks enought time to put on the extra weight i'm worried s/he might be a little small... even though measurments are all fine for gestation.

i know it sounds a bit silly but im just a little worried i feel so much bigger this time round and heavier i expected bubs #2 to be larger then my DD was.