Hi palseyprk,
I'm scheduled for my first fill in 4 weeks, which would be about 6 weeks post op. As Itsforlife said, every doctor is different.
As for hunger, are you still doing the liquid diet? You can always try one of the pre-made Protein shakes. I like taking those with me, because I can drink them and go, plus I'll be full for about 2 hours (depending on what I'm doing).
Milk is also good, if you can drink it.
Hope this helps!