Any recommendations on natural stretch mark prevention cream?

Angelica • Proud first time mama to a beautiful, healthy baby boy due on Jan. 31st, 2017 💙👶🏻👏🏼✨
Curious if any of you have recommendations on natural ingredients-based stretch mark prevention cream? Something that preferably is made with organic ingredients. how soon do people recommend to start using it? I am only 9 weeks but want to prepare. Thanks :)