Evening primrose oil to ripen cervix help.

Does anyone have any experience with evening primrose oil? My midwife said that I can start either taking to capsules orally or putting them in my vagina at night, to help often my cervix and make labor go easier. Well last night I decided to insert them, well because then its going directly to the source lol. But when Id get up to pee, I could feel some oil leaking out. So I guess my question is which way do you think is better? And do you feel like it worked? What are your experiences with it? Thank you in advance.