Hey ladies.. does anyone know if diet pills - specifically the ones that contain ephedra - can affect your menstrual cycle or cause problems with ttc? I have searched on-line and haven't found anything that says it causes problems.. but just want to make sure. I was taking a supplement called TriMethyLean once a day (10mg ephedra) for a few weeks just recently to help me lose weight and it just hit me that it may have affected my cycle..