Talk to Gynecologist on Related To Gyne

Hii dr. My cousin didnot had her periods in the month of march and april In the end of april she took primoult N and got her periods in may We are concerned that if it happens again wat will she do She married last year in march and since january has not physcial relation and havent done intercourse as her husband is out of country Initaillay in march she got her pregnancy test aswell which was negative Plz tell me what could be the reason or shoukd we consult any doc for future