The idea that a good body is one that never had a baby, or that a woman with a never-had-a-baby body is a threat to you or your marriage or your self-worth, is sad.
And the 'wouldn't trade my body for my kids' is (or should be) quite obvious. But here's the thing-- you can have kids AND a good body; it's not an either/or.
http://www.scarymommy.com/never-had-a-baby/