When did you start using stretch mark cream

Brittney • Married 8-14-2014~ Due Oct 5 2017 🎃
When did you start using stretch mark cream and do you have a favorite? I'm going on 5 weeks pregnant and read you should start using it right away. I bought palmers coconut butter and honest co belly balm? I just want to be cautious. I assumed the coco butter was okay to use, but the belly balm has sweet basil so I wanted to get input from other mamas and mamas to be!