ConfusedPrincess, congratulations on your pregnancy!
In your first post, you indicated that everything you had read about infant circumcision was in favor of it. Possibly you stumbled on some pro-circumcision web sites (don't be fooled when a site claims to be "unbiased!") They will tell you that circumcision prevents UTIs, STDs, penile cancer, and zipper injury. They will tell you that the circumised penis is cleaner and more attractive, and that if left intact, your son will be ridiculed by his peers and girlfriends. These are called SCARE TACTICS.
Try to look at this objectively - as if you had never heard of circumcision. You hope and pray for 9 months to deliver a healthy, normal, perfect baby. When you are blessed with such a baby, doesn't it seem bizarre to sign him up for an operation before he even leaves the hospital?
Consider the "medical benefits" of circumcision. Prevents UTIs? Not really. Circumcised males can and do get UTIs.The most current research indicates that intact boys have a slightly higher rate of UTIs in their first year; after that, circumcised males have a higher rate. But put that in perspective - litle girls are FAR more likely to get a UTI than a little boy, regardless of circumcsiion status. Boys already have a low UTI risk! And it can be made even lower by breastfeeding.
Prevents penile cancer? Not really. Circumcised males can and do get penile cancer. But put this into perspective: our sons are more likely to get breast cancer than penile cancer. The American Cancer Society does not list having a foreskin as a risk factor for penile cancer - the primary risk factors are poor hygiene, unprotected sex with multiple partners, and smoking. We can protect our sons against penile cancer by teaching them appropriate behavior.
Prevents STDs? Not really. Circumcised men can and do get STDs, including HIV. The best way to protect against STDs is to practice safe sex. Since babies do not have sex, they do not need to be protected at all! If our sons decide that they do not want to use condoms, they can get themselves circumcised, IF they believe it will protect them against STDs.
I do agree with the poster who asked you to look at this from the opposite angle. Rather than ask "Why shouldn't I cut off my son's foreskin?", perhaps you should ask yourself "Why SHOULD I?"