stretch marks !

Ja
So I was just wondering if any lady's have had or have this happen?..
So I'm 31 weeks pregnant and started noticing I'll feel a sting like scratch then I'll look and find a dark thick stretch mark that was not there a damn minute ago?!.
I've now got all dark thick marks along both sides and now starting on the front of my belly 😰. Is there really anything I can do? 
I am already using stretch mark cream