How much weight gain?

I know I have seen this on her before, but I couldn't find it now, so....

I am 9 months post RNY and I am 16 weeks pregnant.  Although I wasn't really losing weight before I got pregnant, I have lost 10 in the first trimester.  I have not gained any weight yet and although the baby looked great at 12 weeks by ultrasound, I really do not look pregnant at all.  I still had about 60 lbs to lose to get to my ideal weight before I got pregnant, so while I know it's a mind thing, I have always looked SO pregnant by this point. 
how much weight to any of you Ladies gain during pregnancy and when did you gain it?  My OB says her goal is that I gain 10 lbs during this pregnancy.  What do you all think and what was your experiences?

Thank you so much!

last time i gained about 25..... this time at 16 weeks.. im still hovering at 0 gain

I have gained 3 pounds so far and am 26 weeks pregnant...(lost eight in the first trimester)

~Flora

 I am 25 weeks and lost 13 lbs in the first trimester. I have gained 9 lb back. They say Im doing great and that a weight gain of 15-20 lbs is normal. Im 13 months post op.

PG w/ twins 5 months post op..lost 25lbs in the beginning. then at 6-7 months gained 8lbs, delivered my twins at 34 wks, 4.3 lbs and 3.12 lbs..

Congrats on the WL and pregnancy....I gained 27 pounds but was about 4 years post op....since I was still overweight they wanted me to gain no more than 30 pounds....hope you have a good rest of your pregnancy...keep us posted!!!