Bone broth/stretch mark prevention.

So I am trying out something new for pregnancy number 2 (13 years after #1). I am working to stay stretch mark free by using lots of oils and butters and diet. I am making high collagen bone broth every week and consuming it daily. I've done research that leads me to believe it may help my skin make it through this pregnancy with minimal damage. Whatever happens happens and I'm excited about my baby. I will however do everything in my power to minimize my stretch mark collection if I can. I only got a few small ones with my first baby after gaining about 40 lbs. i slathered up with Hollywood Secret Cocoa butter multiple times per day, but they have changed their product and now cocoa butter isn't the number one ingredient, so I am hoping that my new routine will help. I'm not going down without a fight! Anyone else do the bone broth thing during pregnancy?