preventing stretch marks!

Abby • 33 years old. Married to Eric. Mom to 2 boys that are 3 years old and one year old!
I know I'm only 5 weeks pregnant but looking for ideas how to prevent stretch marks. My mother nor my grandmother got them in pregnancy. I also bought palmers tummy butter and started used it yesterday! I'm worried because I have stretch marks on my hips and boobs from gaining and losing in the past! Does stomach stretch marks work the same way? Any advice appreciated!