hi there, i had sex on the 28th of january and on that day was the last day of my period, i went and got the morning after pill on the 3rd day... i havnt had a period yet and i have tooken a pregnancy test once i got out the bath and it came out negative? my periods are normally pretty regular, im terrified of the waiting on my periods which may or may not come! help please? im also 17 years old if tht helps anything!