So sorry you have reason to be here! My DD is 15 and has been on mtx since she was 5. I, too, was apprehensive about putting her on mtx but it turned out to be the medication that finally brought her arthritis under control. Your apprehension is to be expected though, so please know that you're not alone in this.
I'm glad you decided to join us. This group of ladies has been my lifeline on more than one occasion so I'm sure you won't be disappointed.
((HUGS)) to you and your son!
Mom to Jessie
polyarticular JRA with related uveitis