Evening Primrose Oil ??

I’m 38 weeks 4 days today, and was told a week ago that my cervix is still closed. I have tried everything from sex, bouncing on my ball, spicy foods is all I eat, pineapple juice, nipple stimulation and exercise. Nothing is helping. I get mild Braxton Hicks but that’s it. Has anyone used EPO and it worked for them when they were closed ? Or is there any other ideas ? I’m struggling to get through the day because I’m so huge and in pain constantly . My little lady is just being lazy 😩😩