I have just started taking vitex only been taking it 2weeks. I started a few days before I got AF. My AF seemed completely normal and now I am on CD9 the only thing I have noticed so far is I seem to have more CM then normal so hopefully I will ovulate earlier and it will shorten my cycle. Thats why I am taking it as I have heard it can shorten your cycle even by 1 or 2 days. But no spotting here so far.