From the ages 18-23 I was underweight for my height. I weighed 100lbs @ 5'6. After the father of my first 2 children (both of which I had before I turned 18) left me, I worked for months to get to a more healthy weight. It wasn't easy it took me months to gain 20lbs. I got to 120lbs around my 24th birthday. It didn't make a big physical difference, which I loved because I felt better without looking much different. Now that I am pregnant & I am getting close to 140lbs I feel super self conscious because my weight gain is very obvious. Duh! I know, it happens with pregnancy, but I can't help but to worry. I hope I still look as good as I did after my first 2.