Baptism without belonging to a church?

Alexandra

My son is 3 months old and I've taken the decision as his mother to get him baptized. I haven't belonged to a church in over a decade because I do not believe in organized religion. I do believe in baptism tho. Do I HAVE to do it in a church? Can a minister do it anywhere? Is it a minister? Does it have to be a minister or can somebody specifically do baptisms?