My guy is 8 months old and I just got my first fill today. I didn't go back before now mostly b/c I am lazy, and then I had to wait a month to even get an appointment.
I never got unfilled while pregnant, but I did get my band tightened a couple of weeks ago. Noah was 3 months old. I could probably stand to be a little tighter, but I don't want to take a chance on hurting my milk supply.
I'm getting a fill tomorrow although I waited until my baby was 6 months old, just to make sure it doesn't affect my milk supply. I gained 10 lbs in the past 2 months, so I figured I'd better get a fill asap!