stretch marks

I know a lot of moms say “it’s part of a beautiful experience” which I know it is and I’m so grateful that I have the privilege to carry a baby but that doesn’t take away from the fact that I don’t want stretch marks and as a FTM I just want to know when did you guys start getting stretch marks I’m 35+5 and have two tiny little ones that you can barely see so I’m wondering if it starts off like that and just gets worse or if it just stays like this.(btw I started putting lotion 2x and oil 1x and wrapping it 3x a day and seems like it’s helping)