Well I can only tell you that at my current 13 weeks I haven't really gained anything, literally a pound or two. I think most of the weight gain is done in the third trimester. Each pregnancy is different and all the reading I've done, everything says the # of pounds isn't that important as long as you're eating nutrionally and getting sufficient calories. My mom was sick almost the whole time she had me and only gained a total of about 12lbs and I was 6lbs7oz of them! She said the day she had me she only looked 6 months pregnant, and I was her third baby and you supposedly show more after your first.
Anyway, I hope you can get some more helpful answers than mine, lol.
-Allison

I'm 24 weeks and am currently about 5 pounds less than I was when I got pregnant. I usually pack it all on in the last 8 weeks or so. With my last pregnancy I think I had probably gained about 5 pounds by 25 weeks. With the one before it, maybe 10 pounds. I gained 25 pounds total with that pregnancy but I think the majority of that was put on in the last trimester. A friend of mine is 25 weeks right now and has gained 1 pound so far. It's really hard to say, though, how much you've actually gained if you lose a lot in the beginning. Technically, I've probably gained about 10 pounds in this pregnant, but I'm still not up to my pre-pregnancy weight yet so it doesn't look like I've gained any.

Allison is right, though. The number of pounds really isn't that important unless you're gaining too much. It's really just important that you eat healthy. Remember, too, that your weight gain will be made up of placenta, extra blood, baby, larger breasts (in some instances), and even water retention later on so even if you seem to be a lot heavier than you would like it doesn't necessarily mean that you are gaining fat.

At 25 weeks....I think I was about 18pounds..I'm almost 29 weeks now and at 20 pounds gained:)

Well im 22 weeks and I tech have only ginned a few lbs. I lost five lbs from being so sick and have no gained back three lol. My doc isn't to worried yet. Now WIC is worried cuz according to them I have lost a lb and have to go in a month for a weight check.

Now mind u I am overweight anyways and high risk so id think wed want to keep my weight gain low but WIC is more worried then my doc.

At 25 weeks i usually have gained 8-10 pounds. I am 39 weeks with my 3rd child. With all 3 of my pregnancies i have always started between 105-113, and by the end i am at 140-143lbs.