My first pregnancy was in the winter and I wore leggings and compression socks all day. Still had swollen feet but it helped.
I've been taking potassium and magnesium since before pregnancy, and I'm having swelling in my hands, feet, and legs.
Try a low sugar (real sugar, not artificial!!!) hydration/electrolyte packet every day! Add more minerals through sea salt instead of table salt!
Wellow compression