Left Foot Rolling outward (supinated) and Varicose veins on outside left knee

When walking, I notice I have a long habit of putting my weight on the outside edge of my left foot (supination). I also mainly have varicose veins on my left outside knee (currently pronounced from pregnancy). I believe there is a connection to the foot and knee problem. Any tips? I found only info about pronation (rolling inward).

Im in my mid 30s and took the foundations course a couple years ago.