Evening primrose Oil too strong?

Aileen • Mommy of 2. 2 previous MC.
Hey ladies, I went to the store and bout EPO 1000mg. I am 35weeks. Took one dose in the night and next day I was cramping and seems like I was loosing little
Pieces of my mucous plug. Could it be that the dose is too strong. I did this for two nights and stopped because the pain was getting strong. Should I keep on trying or wait until I am about 37-38weeks?