stretch marks?

Is anyone else experiencing stretch marks on their boobs? I am having a hard time with it, I have tried everything for prevention and I keep getting  more. It's really stressing me out, I keep seeing posts about embracing my pregnant self but I can't help but look in the mirror and feel as though I am farthest thing from glowing. I know this is vain and I shouldn't care this much but I am feeling so self conscious.