Don't do it.
It's not your body, so it's not your choice.
Consider the source. Are those telling you it needs to be done truly educated (can they name all the functions of the foreskin?), do they stand to make money from you doing it, or are they culturally conditioned to believe it is a must?
91% of the world's men are intact and live a life without penile incident (unless self-inflicted, which is another Oprah), but medical professionals in the U.S. swear that there is a slew of elderly men whose penises become gnarled and excruciating, which should leave us to question and fight to improve medical training, not jump to the extreme conclusion that we should all cut off 1/3 of every newborn's penis.
Statistically, chances are higher of him dying OF a circumcision than ever NEEDING a circumcision.
If you need more reasons, click HERE for a list of resources.