Most people start out with about 100ml. Now this can stay about that level for anything from a month or two to 12 months. Any time inbetween there is pretty normal. Tho you should be making an effort to move on from there if it is still that tiny at 12 months, as in attempting to eat a bit more. The stomach should settle at about 250ml this again will happen between about 3 months (rare) to about 2 years.
The ones so far we have seen on the forum go "oh my gawd my sleeve has stretched" have infact been those who where stuck at about 100ml for an extended period of time and then went to about 200-250ml. Not an oh my gawd I can now eat to much, just a shock after eating such a tiny amount for such an extended period.
applesauce