So I usually have my period every month like clockwork, it's usually a 28 day cycle but in very rare circumstances can be 30 days, but very rare, perhaps twice a year. So husband and I have had unprotected sex and now Its been 4 days since I was suppose to start and nothing!, I had some spotting yesterday and the day before but only when I wiped myself, very little and today nothing. However I have period like cramps throughout the day. I can't tell if I have any other symptoms, I took a pregnancy test the first day of my missed period and it came back negative so what could it be?. I heard if you get implantation bleeding, it's usually before your period is due but my spotting was 2 days into my missed period, I'm so confused, I was taking the seven seas prenatal vitamins before and have read many reviews where ladies had late periods due to that so I'm assuming it can be contributed towards that also? .
Has anyone had similar experiences, please let me know.