last month the condom broke (im 20 and hes 22) and my boyfriend had me take the morning after pill. 3 weeks later that month i got my period on time but it hurt really bad and it was really heavy. this month i got my period a week early and ive been bleeding really light or not at all and this has been happening for about 3 days now... should i be worried? i took a pregnancy test and it tested negative