2nd baby, stretch marks

For my first born i got stretch marks, i used a pealing cream so they wouldnt be so deep and it worked even my skin lightened a little from the pregnancy, later on when i finally lost all the weight you can bairly tell i had any, unless u stared lol. Now i am pregnant again a year later and im 20 weeks and i already see a little bit of purple on my old ones, depends on the angle im looking at them. With my first i got them like a month before i gave birth. Is it possible they will get bigger? Like the old ones be stretched out bigger.