Man, weight gain in pregnancy sure can be individual-and it sure varies from pregnancy to pregnancy!
I generally gain around 50-60 lbs when I'm pregnant. I'm a tall, smaller framed mama. I make just a bit larger than average babies. (1st was a 34 weeker at 6'10 oz, 2nd was 8 lbs 10 oz, then about that for the others)
This pregnancy, however, I have my first MW/homebirth planned. Since this pregnancy was very back to back with my last, she really recommended excellent nutrition (which I normally eat quite well, but even better this time) supplements, and high protein. I am 35.5 weeks, and I've only gained 27 lbs. I'm even retaining less water than I normally do at the end, and it's hot!
What's really interesting, is that this is measuring my largest baby so far. (I know fundal heights are a rough estimate, but I normally don't measure more than 1 to 2 weeks ahead maximum..and I'm measuring over 4 ahead.) I suppose being even more active than normal, and really focusing on nutrition and protein has grown me a big baby, and not so much big booty like usual, LOL!