Lip Filler Longevity
Depending on the type of filler you had placed, it may still decrease in volume but some of the size you are seeing is also swelling.
It is hard to determine based on not knowing what filler and at what level your injector placed it.
In general, fillers look at their final state no longer than two weeks. Give it another week and you can still ice it at times that it appears swollen. Also, working out, exercise, stress, increased heart rate will all increase swelling ....