Will Taking Folic Acid Cause Delay In Periods?

Hi Doc, my name is Swetha and i have been married 14 months now. we havent planned for a baby yet. few days before due to deficiency in vitamins, my doc advised me to have folican 5mg. due to that i have missed my period. i always get my regulars on 20th of ever month. to be more clear we always use protections. I suspect using folic acis made my period skipped. plz help me to get over my doubt