Genetics ?

Please don't bash me if this question is wrong . FTM here.

Jus like what a few ppl say that how Long your mom was in labour helps you to roughly estimate how long you might be , I want to know if my Husband (born healthy at 34 weeks) & his Brother (born healthy at 36 weeks) could be a genetic reason to make me go into labour now (31w+3D now) ? As of now no alarming signs or health issues for me - but still asking .

My Mom delivered both me & my Brother only after 4 days past the EDD .

I pray that should be the case with me & baby as well. I mean a full term baby 👶 .

Worried after hearing my MILs case.

Is it my pregnancy brain over thinking ?