I had my last period on 7th March, I had intercourse on 12th March where my partner ejaculated inside me, took an ipill the next morning itself, had spotting on 31st march, 1st and 2nd April. I have very regular periods generally which is a 30 day cycle and I bleed for 3-4 days. Prior to getting spotting I had tender breasts and cramps which I usually get before periods. However as of now on 9th April, I have still not gotten my periods and also have no tender breasts/periods signs. On 4th April I had taken a pregnancy test which showed negative result. Please guide me as to what I should do next.