39 weeks. Naturally inducing labor, does it really work!?

so this is my last week until my due date. I'm so beyond ready to meet our little girl. I've been reading online ways to naturally kick start labor at home, have tried a few, but still nothing lol. My last ob appt I was 3cm and 70% effaced. I've been having pre-labor signs the past 2 weeks. Things like strong Braxton hicks, diarreah, lower back pains, tons of pelvic pressure, shooting pains in my crotch, & nausea to name a few. so I'm wondering, have any mamas out there been able to do anything to induce your labor at home? Do you think it really works or just coincidence? So far we have tried: spicy food, sex, walking, stairs, squats, nipple stimulation, pineapple, & raspberry tea. (also this is my 4th baby so everyone was half expecting her to join us early)