Hi, Please do not try any home remedies for inducing labor as you may end up rupturing the membranes and losing all the liquor. Since you have already had three children, your labor would usually be fast enough. Medically, prostaglandins have to be used when there is need to prime the cervix to initiate the process of labor, in the form of vaginal gels and creams; stripping the membranes is another often used procedure to induce labor. These should be done by a qualified person only. Hope this helps.