My period comes around 12-14 of every month, I had unprotected sex and took Ipill on 12th of March(on my expected period day) My period came regularly on 14th march but it lasted around 9 days. Now it's 19th April and still i can't see my period coming, my breast are tender but i have no cramps and any other pms symptoms, i took
pregnancy test on 18th april and it came negative. I am worried, what to do.