FYI castor oil is potentially very dangerous. There's not enough studies to know if or how bad it really is for a unborn baby. Even still the potential risks that have been associated with it should be enough to keep people from trying it to induce labor. Please don't try it. It is possible it can cause baby to have a bowl movement which can cause aspiration and death. It's not worth the risk. This is not to bash anyone for trying to induce. This is not to bash anyone who's tried it. Even if you think it may have helped or if someone tells you it works. It's just not worth the risk of possibly harming your unborn child. Try other things like sex, walking, exercise, yoga ball, eat some pineapples, evening primrose tablets, any of those are a better choice. Please don't try any of these things before full term.