Natural Induction?

When is it safe to naturally induce labor? Of course I'm going to ask my doctor tomorrow but I'm just curious about what other people think. I wasn't thinking of inducing because I wanted my little guy to come at his own pace but I just found out that my cousin who is a Navy SEAL and stationed in Greece will be here in February. She won't be able to come home after this until her time in Greece is over and that's years from now. She's moving to California when she does come back. My cousin and I are as close as two people can be and I want her to be here for my son's birth. 😔