MickyLee - sorry you left the thread at that point. Hope you do pop back and have a read...
"I know I am making the right decision and I also know that others will not understand them so I am off the thread."
It sounded to me like a decision based partly on your husband's religious views, partly on how you foresee your son fitting in at school, and partly concerning him serving in the military at age 18.
So while I can understand you thinking ahead (rather a long time period) to when he could be serving in the military and be 'forced' to be circumcised (for no logical reason - otherwise all men would be, and evolution would have made it "the norm" if it had so many benefits) and wanting him to avoid unnecessary pain at 18, I am still rather unmoved by your reasoning before then.
Boys at school (here in UK) may still make one uncomfortable for having red hair, or wearing glasses, or being too tall or too short, and having a foreskin is completely natural in other countries, so you could break with what is expected as far as school.
Why would he be circumcised if he joins the military? Is it so overwhelmingly a nation of one religion that Christians are outcasts, persecuted, or stoned to death ? Would a Christian never be accepted into the military?
There may be issues concerning hygiene from earlier times that make it common in some countries for circumcision to take place, but it is another situation imposed on your child by the bad luck of being born in that country.
I feel pretty much the same about religion. At the age of 20 months, who is to know whether your son might one day choose not to be religious (assuming that is permitted) or to be a Methodist, Baptist, or join the Roman Catholics, or become a Buddist, etc, etc (sorry, too many to list) but the choice is out of his hands, and along with the expectation of following his father into Islam, goes his foreskin. If his parents were living here, and you were Muslim, but your husband was not, do you think you would still go ahead with this? Would you expect your child to be brought up as a Muslim, or adopting your husband's religion ?
I only ask, for balance, because it seems a rotten situation for an innocent child to have decisions made which could be life-threatening (on religious grounds, if he wanted to change to Christianity, perhaps) and cannot be reversed (sewing a foreskin back on might be possible, but by the time he can afford that operation, will be very painful and there should be no need to reverse a surgical procedure if it isn't necessary on medical grounds in the first place).
You've apparently resigned yourself to living in a country where religious beliefs are apparently strongly if not exclusively a belief in Islam, and mutilation is accepted and expected whatever you as a non-Muslim might wish for.
How sad that you are living there, where you seem incapable of avoiding this path. That's either strong love for your husband, with an absence of feeling for the free will of your child to make his own mind up as he gets older, and/or leave the country before military service is expected, if circumcision is one side-effect of that military service, or just having a stubborn husband who is inflexible and will not tolerate alternative ways of upbringing, and a willingness to accept that not every male is circumcised in the world, and there is no need to do so.