Delay in periods.
I m unmarried girl. I have taken medicines for one year for heavy flow and clots in manstrual blood. Prior to this medication (yasmin for 6mnths thn elesta for nxt 6mnths with this ferric 50 calet kd ) my periods are regular and on time. But now from 4-5months my date is delayed by 6-7 days. I m worried about this. What is the reason? My ultrasound report is norml. Thank you.