Hi all, those of you who took b50 vitamins how long did they take to work? I took for a solid month last month in the hope they would shorten my cycles. I ovulated a day earlier (CD 21) but still had a 33 day cycle with 2 days of spotting. Previous months were 33 days, 27 days and 31 days. So unsure if I should carry on for an additional month?