B6 vitamins?

I started taking a b6 vitamin in July got pregnant ended in misscarriage kept taking it and now my cycles seem to get longer and longer? I goggled it and found out it can cause delayed ovulation and longer periods..was taking it to see if I could increase cm bc I never have any noticeable! Should I stop taking it? What are everyone's thought and what happened when you tried it? My luteal phase is 12 days so I guess I don't need to use it to lengthen it? Need some advice please!