Evening Primrose Oil

Jodi • Mama bear 🐻 with my two cubs 🐻🐻 -- They're my everything 💕
Question for mommies who have taken Evening Primrose Oil, 
Did it work to help you dilate? Or cause contractions?
I started taking it about 4 days ago, started with 500mg a day and now I'm up to 2000mg a day. 
How long after starting to take it did it do anything?! 
If it matters, yes I'm full term, and also 3.5cm dilated already!