Hello , hope your op goes well today, I had a fill 4 months post op, that was only because my port had flipped over and had to have my port repositioned , how ever if I hadn't of had to have that done I would have had a 3 mil fill at 6 weeks ( that's when they discovered my port had overturned because I was going in for my first fill - Wishing you a speedy recovery - Julie xxx