I was with my partner for 3 year and we broke up 2nd of jan we have had sex 2 times since but now I'm 2 month late so last time I was on my period was December I'm regular and never miss a period I had a bit of spotting near the end of jan but was only a little bit of blood and only for a few hours I did a test at the end of jan and it came up negative but I still haven't had my period why haven't I ?