@ what week does a doctor not stop labor?

Luckily I live within a 10 min drive from my hospital with a level 4 nicu so I'm not worried but I am curious at what point the baby could come and they wouldn't stop it?

I'm being induced at 39 for being high risk anyways but would like to not have to be induced.

So when is the sweet spot? Baked enough but not induction time?

*****I'm not going to try anything to start labor. I'm just curious***