Twiglett, I did a google search with your name and evening primrose AND on the 2nd April, you quoted these
Baby aspirin (less than 81mg) daily throughout cycle
Vitex Agnus Castus from period to ovulation (although some theories that can be taken throughout cycle but should be stopped when pregnancy established)
Evening Primrose Oil (1500mg to 3000mg per day) from period to ovulation (do not take past ovulation)
Vitamin B6 (100mg to 200mg) most B6 supplements have a lot less so should ask specifically for this
HTH