As a person who has had previous issues with food/weight, please listen to me. If you are eating well - variety of fruits and veggies, adequate fat and protein - and are active - but not extreme - it does not matter what the scale says. Period. You should be focused solely on nutrition and the health of you and your baby, not weight gain.
I know it is hard, especially when everyone and their brother thinks they should be able to comment on your weight while pregnant, but you really have to be like a duck letting the water roll of your back.
Sorry, I know that is goofy.
When you go to see the OB, make sure that you have a consultation with him/her beforehand. Explain your history and your current lifestyle so that y'all are both on the same page before
you step on a scale.
Regarding your belly size, almost everyone looks bigger in subsequent pregnancies. It also has alot to do with the position of the baby as well. And your build. Women with short torsos (sp?), like myself
, tend to have huge bellies.
Sounds like you are doing great - don't let it get you down.