It's possible some will show up but you could get lucky. I didn't get any on my stomach with my first and made it to 37 weeks with my second without them, and they're pretty much clear

When I had my first my stretch marks didn't show up until after and I got them pretty bad :/ it's a 50/50 chance

I got quite a few after giving birth. So it's possible.

First time moms usually have bright red / purple stretch marks

You might notice faint ones but nothing serious id assume