Got my last ultrasound done today and they were surprised how low his head was already. Does this…

Got my last ultrasound done today and they were surprised how low his head was already. Does this put me at risk for preterm labor? Sorry if it's a stupid question, FTM here 🙋🏻 lol. I just want him to stay until at least 39 weeks and now I'm paranoid I'm going to go into labor in the next couple of weeks.