My two children have the same BMI values, but one is considered obese and the other is not. CDC supports the implementation of evidence-based teen pregnancy prevention programs that have been shown, in at least one program evaluation, to have a positive effect on preventing teen pregnancies, sexually transmitted infections, or sexual risk behaviors. How can we put the joy back into our sex life? I can't relate to my friends with babies. What can I do? My partner is reluctant to get tested. How can I convince him.