I have PCOS and my cycles are all over the place. I struggle with infertility and irregular periods. I didn’t have a period for 5 months straight! I started Vitex and Maca for 1 month and didn’t notice any results. I gave Vitex and Maca another month and I got my period! I had 2 periods, one each month on the same day of each month! Now that’s amazing! I don’t know remember when my cycle fell on the same day each month. If you are taking Vitex or Maca, DO NOT GIVE UP! Let this stuff do its job.