Mom and sister had early babies what are my chances?

Hello ladies,

My mom had myself and sister 4/3 weeks early before her due date and my sister had her girls both 2 weeks early. Is this something that runs in the family? Is there w good chance I will be delivering early? It’s stressing me out as I am over 32 weeks now & not sure if I should start really cracking down on getting things ready 🤷‍♀️