Evening Primrose Oil advice

Lauren • Currently pregnant with baby #2!!
So I don't want any harsh or negative comments please. But honest options are welcome, just be kind. ☺ Also, please note I am NOT trying to induce my labor (yet lol) as I am 36w2d. I'm am just trying to prep my body. 
I've been taking EPO for a little over one week. Twice a day (1000mg pills each) orally only. I read somewhere that you can start taking one of those vaginally at 36 weeks. But of course I've read conflicting things. Like taking it vaginally increases the chance of your waters breaking. In my opinion, my body isn't going to go into labor until it's ready regardless. But I want your opinions and experiences with this. Please, do tell! ☺