Vitamin B6

Patient: Hello! I typically have a 26-27 day cycle & have been known to have some 25 day cycles. I started taking vitamin B6 and prenantals, one of each a day, 52 mg of vitin B6. I am now a day or two late on my period. Can I stop taking the vitamins after only three days of use? Or will I cause myself harm? Or if I pregnant, will I cause a miscarriage?

Symptoms: White discharge, slight cramping.