What should i do about these stretch marks?

ive been using palmers cocoa er, ive tried all the kinds of stretch marks creams and oils and er from palmers. and still i have stretch marks, there not that bad, but id perfer if they werent there. is there anything out on the market that is really great that you could recommend? my doc. saiud it could becuase of my mom has stretch marks so i could be likely to get them also. but i want to prevent them from gettin worse.