You can gain 35-45 over the entire pregnancy and it is considered perfectly acceptable. If you're considered underweight to begin with they encourage you to gain even more. So don't stress, unless your doctor says something, the gain is good!

im 19Weeks 4days and have gained 4 lbs...got told last week im low on my weight...trying to add some extras healthy calories now

You're doing fine. At 17 weeks I already gained 17 pounds.. I'm up 42 now.

I wish mine was like yours! I'm having trouble keeping weight on! Before my pregnancy I was 118, just a couple weeks ago I was 112. I'm at 116 now but I'm worried I'm not going to gain enough....

@alyen2, ok lol just feel like i gained alot lol

Not at all! Weight gain is a good thing. Sounds like a perfect amount to me.