Should I be taking all these supplements?

I've got really irregular periods since coming off the pill 11 months ago. My first cycle was over a hundred days, then after that cycles have been at least 55 days.I know I have been ovulating because I got pregnant twice, miscarried both times. The NHS refuse to offer any diagnostic tests until I have the miscarriages or am trying for over a year. I eat pretty healthily and exercise regularly but not excessively. In an effort to get my cycles down to 35 days, I'm wondering if I should take all these supplements: Nac, primrose oil, cod liver oil, zinc and folic acid, chaste berry.

Any advice would be much appreciated!