If you really want to try and get your labor going try nipple stimulation. Keep in mind that this will only work if your body is ready to have the baby.
The contractions you can get with the stimulation can be very intense so be careful. Most woman who do this for 15 minutes each nipple for about three hours go into labor within 72 hours. If you start having a contraction while stimulation stop and wait then begin again. Just be very careful.
There is also castor oil but I don't suggest it. It just gives you the runs and dehydrates you, that is why you go into labor. Not at all pleasant if you ask me. And can make for a very messy delivery.
Oh, when you start having contractions, walk. That is the best to get them closer and stronger.
Good luck!!
Lindsay