Hi, I use to have irregular period, but after visiting my doctor she said I should start taking folic acid 400mg but I was taking it 800mg. I saw my period on 6th of October 2022, then I saw it again on 18th of that same October that is after 13 days, then I miss my period in November and my pregnancy test came out negative, then my doctor suggested primolut N which I have completed the dosage but yet no period