Notes from a Woman with a Bump - Weight Gain

My body gained 52lbs during my first pregnancy.  I was not necessarily swollen, I do not recall.  But I was big.  Huge in the last few weeks.  This 52lb gain was after 5lbs loss in the first trimester.
They say for a woman with normal BMI, the healthy weight gain is 25-35lbs.
But there was nothing I could do to slow down the weight gain cause there was nothing I was doing to gain in the first place.  No particular overindulgence but lack of physical activities for sure, even though I swam once a week and walked when the snow storms on Toronto allowed and did yoga till 7th month.
I lost it all in the first 3 months post deliver.  I was back to where I was after that.  Granted, I stayed active.  And I cannot wait to be able to do a set of 20 jumping jacks again followed one of those 2 minutes ab works from Exercise TV.
This time, my body started gaining weight from the beginning of my pregnancy.  I do not appreciate the negative remarks about my body's form and weight gain to be honest.  I appreciate "you are a cute pregnant lady" though ;)  Which I do get a lot.  But last week a colleague asked about the week I am in, week 30th, and then asked if I had a twin!!  Interestingly her own body is on the heavy side.
In the past four weeks my body has gained only 2lbs, which is a record low since I routinely meet my doc.
Today in one of the many pregnancy magazines laying around the house I read that in the 3rd trimester the baby grows twice as tall and gains four times its weight.  Well.  Here we go!