T. ~
I'm a labor & delivery nurse.
1st question is, when's your due date? Please don't try anything before 39 weeks. Everybody says their pregnancy has been long, and maybe you've had some issues, but babies born early don't always breathe so well. their lungs aren't always developed....and believe it or not, just a couple of weeks makes a huge difference. my grandson was born at almost 36 weeks (mom had pre-eclampsia, so had to be induced) and he ended up on a ventillator and didn't come home until he was 9 days old.
walking does not put you into labor.
caster oil can....mix 2 Tbsp in orange juice. it will probably start you with loose stools, cramping, etc.
sometimes your doctor or midwife can strip your membranes and it may or may not put you into labor. most patients say that it's a pretty uncomfortable exam.
sex, nipple stimulation can cause contractions. some medications that we use to induce labor are prostiglandins, and semen has prostiglandins in it.
spicy foods seems to be common, but I don't know that it actually does anything.
an enema can put you into labor...similar to the castor oil results (we used to have a doctor who sent patients in for induction by using an enema...and they all went into labor!)
massage therapists are supposed to not massage pregnant women's ankles/lower legs, since there are pressure points there that cause uterine contractions. if you are full-term, they may do it for you. find someone who is certified in pregnancy massage.
if you have any questions, please email me.
good luck!
D.