Do u think stretch marks are genetic?

Carmel • First time mom!
So I'm at the point of freaking out what my body is going to look like after delivery
Obviously I'm expecting a big change but I'm have the type of body where I never had to worry about my weight, diets or anything like that.. I'm petit in size and weight and always have been.
Now I heard there's no escaping stretch marks and the loose skin but on the other hand my mom lost all the baby weight 6 weeks after delivery and never had stretch marks or loose skin in her life and I have the same body type like she had so she said I shouldn't worry to much.
What do u think? Tell me your experience and you're more then welcome posting pictures! Thank you ❤️

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