Hello girls! I'm 39 weeks pregnant, I'm really looking forward to when…

Hello girls! I'm 39 weeks pregnant, I'm really looking forward to when the baby will be born. There are no signs of labor approaching, I feel fine, there's no pain anywhere, my belly hasn't dropped yet, this is my first pregnancy. I want to know how you started your labor, what were the premonitions, and can you stimulate labor without harming your health? I know it sounds weird, but I'm just curious.