dont take castor oil as can upset babys belly and make them poop inside u and then it endangers there health and yours, sex is a defo try as the seamen irratates the cervix, my friend gave birth last week, she made fresh pinapple and papaya smoothies for 2 days, had sex and blew up her birthing ball and used that, within 10 hours she was in labour and she was a week early!! defo worth a short, you can get fresh chopped pinapple in asda instead buying a hole one lol, u get 5 bit peices for ??1.50 x