I’m wondering if anyone can advise me. My periods are all over the place. They last ages and start early. I just had a positive ovulation test for the normal 2 days then period started immediately after - so two weeks early. I’m guessing it is progesterone deficiency (after googling). Also I’ve got sore breasts which relates to progesterone deficiency (according to Google!). Can anyone recommend a supplement that will help me. Preferably an over the counter supplement.