Can expressions like crying and laughing cause lip filler migration in the first few days?

Hi, I’m curious to know if pressure in the lips from smiling, laughing, crying/sobbing, etc in the first few days after getting the procedure can push/move lip filler at all, especially into unwanted areas like the philtrum or elsewhere around the lips? Is there a point where the filler completely sets in place or is migration always a possibility? Migration is one of my biggest fears. Any feedback would be greatly appreciated. Thanks!