When is it considered “safe” to naturally “induce” labor?

I’m wondering when it would be considered okay/safe to start trying to naturally “induce” labor such as bouncing on the birthing ball, walking, sex, etc.? Not necessarily to ‘induce’ but to get labor going. *I know baby will come when she’s ready and when it’s time, but I would rather not induce medically if I go over my due date,* I’d rather try getting her going naturally first & use medical intervention as a last resort. Is 38 weeks a ‘good’ time to start?