When I was 16 I weighed 105 lbs. I have a small frame and with little or no effort stayed that way through my first baby. Apparently the first baby was free. The second was not. To my horror I discovered one morning I weighed 131 lbs. That second baby, my 40 year old metabolism, and the lifestyle of a working engineer mom had taken their toll. It was April 2008. Since then my husband and I have both lost about 20 lbs. I'm headed back to 105!