If you search around the interwebz, there are lots of women giving lots of advice to pregnant women about how to get a baby out. Bumpy car rides, sex, castor oil, nipple stimulation, assorted weird herbal teas. All supposedly cause labor induction.
Certainly, it’s all unsubstantiated bullshit. But beyond that, I say just wait until that baby comes out on its own and try to rest in the mean time. Once it’s out you can’t put it back in and, trust me, some days you’re going to wish you could put the little fucker back in.