There's a thread about halfway down this page called "weight gain check in everyone" for keeping track of weight gain during your pregnancy. There's also a weekly weigh in for breastfeeding moms after baby gets here.
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"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly..."
Weight loss on hold while I'm pregnant with baby #3, due June 2012.